15042388 has 12 divisors (see below), whose sum is σ = 26532352. Its totient is φ = 7461720.

The previous prime is 15042383. The next prime is 15042403. The reversal of 15042388 is 88324051.

15042388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15042383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14298 + ... + 15313.

Almost surely, 2^15042388 is an apocalyptic number.

It is an amenable number.

15042388 is a deficient number, since it is larger than the sum of its proper divisors (11489964).

15042388 is a wasteful number, since it uses less digits than its factorization.

15042388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29742 (or 29740 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 15042388 is about 3878.4517529550. The cubic root of 15042388 is about 246.8532951703.

The spelling of 15042388 in words is "fifteen million, forty-two thousand, three hundred eighty-eight".