15023428 has 24 divisors (see below), whose sum is σ = 30156224. Its totient is φ = 6415200.

The previous prime is 15023423. The next prime is 15023429. The reversal of 15023428 is 82432051.

15023428 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

15023428 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (15023423) 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, 8458 + ... + 10078.

Almost surely, 2^15023428 is an apocalyptic number.

It is an amenable number.

15023428 is an abundant number, since it is smaller than the sum of its proper divisors (15132796).

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

15023428 is a wasteful number, since it uses less digits than its factorization.

15023428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 15023428 is about 3876.0067079405. The cubic root of 15023428 is about 246.7495371260.

Adding to 15023428 its reverse (82432051), we get a palindrome (97455479).

It can be divided in two parts, 15023 and 428, that added together give a palindrome (15451).

The spelling of 15023428 in words is "fifteen million, twenty-three thousand, four hundred twenty-eight".