15040232 has 16 divisors (see below), whose sum is σ = 28252260. Its totient is φ = 7506304.

The previous prime is 15040219. The next prime is 15040243. The reversal of 15040232 is 23204051.

It can be written as a sum of positive squares in 2 ways, for example, as 14638276 + 401956 = 3826^2 + 634^2 .

It is a super-2 number, since 2×15040232² = 452417157227648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15040232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4028 + ... + 6804.

Almost surely, 2^15040232 is an apocalyptic number.

It is an amenable number.

15040232 is a deficient number, since it is larger than the sum of its proper divisors (13212028).

15040232 is a wasteful number, since it uses less digits than its factorization.

15040232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 15040232 is about 3878.1737970339. The cubic root of 15040232 is about 246.8415009185.

Adding to 15040232 its reverse (23204051), we get a palindrome (38244283).

The spelling of 15040232 in words is "fifteen million, forty thousand, two hundred thirty-two".