13872416 has 12 divisors (see below), whose sum is σ = 27311382. Its totient is φ = 6936192.

The previous prime is 13872403. The next prime is 13872421. The reversal of 13872416 is 61427831.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 883600 = 3604^2 + 940^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 433513 = 13872416 / (1 + 3 + 8 + 7 + 2 + 4 + 1 + 6).

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 as a sum of consecutive naturals, namely, 216725 + ... + 216788.

Almost surely, 2^13872416 is an apocalyptic number.

13872416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13872416 is a deficient number, since it is larger than the sum of its proper divisors (13438966).

13872416 is an equidigital number, since it uses as much as digits as its factorization.

13872416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433523 (or 433515 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 13872416 is about 3724.5692368380. The cubic root of 13872416 is about 240.2798587212.

The spelling of 13872416 in words is "thirteen million, eight hundred seventy-two thousand, four hundred sixteen".