15242872 has 8 divisors (see below), whose sum is σ = 28580400. Its totient is φ = 7621432.

The previous prime is 15242869. The next prime is 15242873. The reversal of 15242872 is 27824251.

It is a happy number.

15242872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15242873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 952672 + ... + 952687.

It is an arithmetic number, because the mean of its divisors is an integer number (3572550).

Almost surely, 2^15242872 is an apocalyptic number.

It is an amenable number.

15242872 is a deficient number, since it is larger than the sum of its proper divisors (13337528).

15242872 is a wasteful number, since it uses less digits than its factorization.

15242872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905365 (or 1905361 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 15242872 is about 3904.2120844032. The cubic root of 15242872 is about 247.9451404843.

The spelling of 15242872 in words is "fifteen million, two hundred forty-two thousand, eight hundred seventy-two".