13047372 has 48 divisors (see below), whose sum is σ = 36432480. Its totient is φ = 4014144.

The previous prime is 13047367. The next prime is 13047407. The reversal of 13047372 is 27374031.

It is a super-2 number, since 2×13047372² = 340467832212768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3243 + ... + 6050.

It is an arithmetic number, because the mean of its divisors is an integer number (759010).

Almost surely, 2^13047372 is an apocalyptic number.

13047372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13047372 is an abundant number, since it is smaller than the sum of its proper divisors (23385108).

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

13047372 is a wasteful number, since it uses less digits than its factorization.

13047372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319 (or 9311 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 13047372 is about 3612.1146161217. The cubic root of 13047372 is about 235.4187313400.

The spelling of 13047372 in words is "thirteen million, forty-seven thousand, three hundred seventy-two".