15969042 has 32 divisors (see below), whose sum is σ = 35981760. Its totient is φ = 5248800.

The previous prime is 15969011. The next prime is 15969043. The reversal of 15969042 is 24096951.

It is a junction number, because it is equal to n+sod(n) for n = 15968988 and 15969006.

It is not an unprimeable number, because it can be changed into a prime (15969043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917 + ... + 5967.

It is an arithmetic number, because the mean of its divisors is an integer number (1124430).

Almost surely, 2^15969042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15969042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17990880).

15969042 is an abundant number, since it is smaller than the sum of its proper divisors (20012718).

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

15969042 is a wasteful number, since it uses less digits than its factorization.

15969042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135 (or 4129 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 15969042 is about 3996.1283763163. The cubic root of 15969042 is about 251.8215857319.

The spelling of 15969042 in words is "fifteen million, nine hundred sixty-nine thousand, forty-two".