1372816 has 20 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 681632.

The previous prime is 1372799. The next prime is 1372829. The reversal of 1372816 is 6182731.

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, 3645 + ... + 4003.

It is an arithmetic number, because the mean of its divisors is an integer number (133920).

2^1372816 is an apocalyptic number.

1372816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1372816 is a deficient number, since it is larger than the sum of its proper divisors (1305584).

1372816 is a wasteful number, since it uses less digits than its factorization.

1372816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 600 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 1372816 is about 1171.6723091377. The cubic root of 1372816 is about 111.1400985110.

It can be divided in two parts, 137281 and 6, that multiplied together give a triangular number (823686 = T₁₂₈₃).

The spelling of 1372816 in words is "one million, three hundred seventy-two thousand, eight hundred sixteen".