39428592 has 80 divisors (see below), whose sum is σ = 119159040. Its totient is φ = 10999296.

The previous prime is 39428581. The next prime is 39428633. The reversal of 39428592 is 29582493.

It is a super-2 number, since 2×39428592² = 3109227734204928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13084 + ... + 15812.

It is an arithmetic number, because the mean of its divisors is an integer number (1489488).

Almost surely, 2^39428592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39428592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59579520).

39428592 is an abundant number, since it is smaller than the sum of its proper divisors (79730448).

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

39428592 is a wasteful number, since it uses less digits than its factorization.

39428592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790 (or 2784 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 39428592 is about 6279.2190597239. The cubic root of 39428592 is about 340.3588828746.

The spelling of 39428592 in words is "thirty-nine million, four hundred twenty-eight thousand, five hundred ninety-two".