3974200920 has 48 divisors (see below), whose sum is σ = 12916154160. Its totient is φ = 1059786816.

The previous prime is 3974200913. The next prime is 3974200921. The reversal of 3974200920 is 290024793.

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 (3974200921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5519364 + ... + 5520083.

It is an arithmetic number, because the mean of its divisors is an integer number (269086545).

Almost surely, 2^3974200920 is an apocalyptic number.

3974200920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3974200920 is an abundant number, since it is smaller than the sum of its proper divisors (8941953240).

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

3974200920 is a wasteful number, since it uses less digits than its factorization.

3974200920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11039464 (or 11039457 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 3974200920 is about 63041.2636294673. The cubic root of 3974200920 is about 1583.9808977647.

The spelling of 3974200920 in words is "three billion, nine hundred seventy-four million, two hundred thousand, nine hundred twenty".