13872012 has 48 divisors (see below), whose sum is σ = 40357632. Its totient is φ = 3602880.

The previous prime is 13872007. The next prime is 13872029. The reversal of 13872012 is 21027831.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6583 + ... + 8430.

It is an arithmetic number, because the mean of its divisors is an integer number (840784).

Almost surely, 2^13872012 is an apocalyptic number.

13872012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13872012 is an abundant number, since it is smaller than the sum of its proper divisors (26485620).

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

13872012 is a wasteful number, since it uses less digits than its factorization.

13872012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15038 (or 15036 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 13872012 is about 3724.5150019835. The cubic root of 13872012 is about 240.2775261786.

Adding to 13872012 its reverse (21027831), we get a palindrome (34899843).

The spelling of 13872012 in words is "thirteen million, eight hundred seventy-two thousand, twelve".