3721418280 has 192 divisors, whose sum is σ = 12801672000. Its totient is φ = 934944768.

The previous prime is 3721418249. The next prime is 3721418291. The reversal of 3721418280 is 828141273.

3721418280 is a `hidden beast` number, since 372 + 1 + 4 + 1 + 8 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1318711 + ... + 1321529.

It is an arithmetic number, because the mean of its divisors is an integer number (66675375).

Almost surely, 2^3721418280 is an apocalyptic number.

3721418280 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 3721418280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6400836000).

3721418280 is an abundant number, since it is smaller than the sum of its proper divisors (9080253720).

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

3721418280 is a wasteful number, since it uses less digits than its factorization.

3721418280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 3721418280 is about 61003.4284282449. The cubic root of 3721418280 is about 1549.6590689631.

The spelling of 3721418280 in words is "three billion, seven hundred twenty-one million, four hundred eighteen thousand, two hundred eighty".