15985042 has 16 divisors (see below), whose sum is σ = 25338240. Its totient is φ = 7542288.

The previous prime is 15985033. The next prime is 15985043. The reversal of 15985042 is 24058951.

It is a junction number, because it is equal to n+sod(n) for n = 15984989 and 15985007.

It is not an unprimeable number, because it can be changed into a prime (15985043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11383 + ... + 12709.

It is an arithmetic number, because the mean of its divisors is an integer number (1583640).

Almost surely, 2^15985042 is an apocalyptic number.

15985042 is a deficient number, since it is larger than the sum of its proper divisors (9353198).

15985042 is a wasteful number, since it uses less digits than its factorization.

15985042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 15985042 is about 3998.1298128000. The cubic root of 15985042 is about 251.9056609166.

The spelling of 15985042 in words is "fifteen million, nine hundred eighty-five thousand, forty-two".