3722993280 has 384 divisors, whose sum is σ = 13713598080. Its totient is φ = 964472832.

The previous prime is 3722993273. The next prime is 3722993333. The reversal of 3722993280 is 823992273.

3722993280 is a `hidden beast` number, since 37 + 2 + 299 + 328 + 0 = 666.

3722993280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5753917 + ... + 5754563.

It is an arithmetic number, because the mean of its divisors is an integer number (35712495).

Almost surely, 2^3722993280 is an apocalyptic number.

3722993280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3722993280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6856799040).

3722993280 is an abundant number, since it is smaller than the sum of its proper divisors (9990604800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3722993280 is an equidigital number, since it uses as much as digits as its factorization.

3722993280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3722993280 is about 61016.3361731922. The cubic root of 3722993280 is about 1549.8776566634.

It can be divided in two parts, 3722993 and 280, that added together give a palindrome (3723273).

The spelling of 3722993280 in words is "three billion, seven hundred twenty-two million, nine hundred ninety-three thousand, two hundred eighty".