39428892 has 18 divisors (see below), whose sum is σ = 99667568. Its totient is φ = 13142952.

The previous prime is 39428887. The next prime is 39428903. The reversal of 39428892 is 29882493.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 547588 + ... + 547659.

Almost surely, 2^39428892 is an apocalyptic number.

It is an amenable number.

39428892 is an abundant number, since it is smaller than the sum of its proper divisors (60238676).

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

39428892 is a wasteful number, since it uses less digits than its factorization.

39428892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095257 (or 1095252 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 39428892 is about 6279.2429479994. The cubic root of 39428892 is about 340.3597461010.

The spelling of 39428892 in words is "thirty-nine million, four hundred twenty-eight thousand, eight hundred ninety-two".