3721438080 has 192 divisors, whose sum is σ = 13327095600. Its totient is φ = 992342016.

The previous prime is 3721438033. The next prime is 3721438081. The reversal of 3721438080 is 808341273.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721438081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143556 + ... + 167484.

Almost surely, 2^3721438080 is an apocalyptic number.

3721438080 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 3721438080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6663547800).

3721438080 is an abundant number, since it is smaller than the sum of its proper divisors (9605657520).

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

3721438080 is an equidigital number, since it uses as much as digits as its factorization.

3721438080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23963 (or 23939 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3721438080 is about 61003.5907139899. The cubic root of 3721438080 is about 1549.6618173055.

The spelling of 3721438080 in words is "three billion, seven hundred twenty-one million, four hundred thirty-eight thousand, eighty".