15045438 has 16 divisors (see below), whose sum is σ = 30154896. Its totient is φ = 5004480.

The previous prime is 15045431. The next prime is 15045449. The reversal of 15045438 is 83454051.

It is a super-2 number, since 2×15045438² = 452730409223688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15045431) 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, 720 + ... + 5532.

It is an arithmetic number, because the mean of its divisors is an integer number (1884681).

Almost surely, 2^15045438 is an apocalyptic number.

15045438 is an abundant number, since it is smaller than the sum of its proper divisors (15109458).

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

15045438 is a wasteful number, since it uses less digits than its factorization.

15045438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 15045438 is about 3878.8449311619. The cubic root of 15045438 is about 246.8699780637.

Adding to 15045438 its reverse (83454051), we get a palindrome (98499489).

The spelling of 15045438 in words is "fifteen million, forty-five thousand, four hundred thirty-eight".