3731272920 has 96 divisors (see below), whose sum is σ = 12157348320. Its totient is φ = 992486400.

The previous prime is 3731272913. The next prime is 3731272943. The reversal of 3731272920 is 292721373.

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

It is a congruent number.

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, 131437 + ... + 157283.

It is an arithmetic number, because the mean of its divisors is an integer number (126639045).

Almost surely, 2^3731272920 is an apocalyptic number.

3731272920 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 3731272920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6078674160).

3731272920 is an abundant number, since it is smaller than the sum of its proper divisors (8426075400).

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

3731272920 is a wasteful number, since it uses less digits than its factorization.

3731272920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26265 (or 26258 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 3731272920 is about 61084.1462246957. The cubic root of 3731272920 is about 1551.0257407493.

The spelling of 3731272920 in words is "three billion, seven hundred thirty-one million, two hundred seventy-two thousand, nine hundred twenty".