3731065920 has 168 divisors, whose sum is σ = 12860999424. Its totient is φ = 992805888.

The previous prime is 3731065913. The next prime is 3731065931. The reversal of 3731065920 is 295601373.

3731065920 is a `hidden beast` number, since 37 + 31 + 0 + 6 + 592 + 0 = 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 23 ways as a sum of consecutive naturals, for example, 1689457 + ... + 1691663.

It is an arithmetic number, because the mean of its divisors is an integer number (76553568).

Almost surely, 2^3731065920 is an apocalyptic number.

3731065920 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 3731065920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6430499712).

3731065920 is an abundant number, since it is smaller than the sum of its proper divisors (9129933504).

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

3731065920 is a wasteful number, since it uses less digits than its factorization.

3731065920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2804 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 3731065920 is about 61082.4518171954. The cubic root of 3731065920 is about 1550.9970581100.

The spelling of 3731065920 in words is "three billion, seven hundred thirty-one million, sixty-five thousand, nine hundred twenty".