15040454 has 32 divisors (see below), whose sum is σ = 27143424. Its totient is φ = 6158880.

The previous prime is 15040453. The next prime is 15040469. The reversal of 15040454 is 45404051.

It is a super-2 number, since 2×15040454² = 452430513052232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11687 + ... + 12909.

It is an arithmetic number, because the mean of its divisors is an integer number (848232).

Almost surely, 2^15040454 is an apocalyptic number.

15040454 is a deficient number, since it is larger than the sum of its proper divisors (12102970).

15040454 is a wasteful number, since it uses less digits than its factorization.

15040454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 15040454 is about 3878.2024186471. The cubic root of 15040454 is about 246.8427154065.

It can be divided in two parts, 150 and 40454, that added together give a palindrome (40604).

The spelling of 15040454 in words is "fifteen million, forty thousand, four hundred fifty-four".