15099942 has 32 divisors (see below), whose sum is σ = 35481600. Its totient is φ = 4223520.

The previous prime is 15099901. The next prime is 15099943. The reversal of 15099942 is 24999051.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 15099942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15099943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7942 + ... + 9657.

It is an arithmetic number, because the mean of its divisors is an integer number (1108800).

Almost surely, 2^15099942 is an apocalyptic number.

15099942 is an abundant number, since it is smaller than the sum of its proper divisors (20381658).

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

15099942 is a wasteful number, since it uses less digits than its factorization.

15099942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17628.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 15099942 is about 3885.8643826052. The cubic root of 15099942 is about 247.1677247061.

The spelling of 15099942 in words is "fifteen million, ninety-nine thousand, nine hundred forty-two".