1372731200 has 42 divisors (see below), whose sum is σ = 3377780646. Its totient is φ = 549091840.

The previous prime is 1372731197. The next prime is 1372731203. The reversal of 1372731200 is 21372731.

It is an interprime number because it is at equal distance from previous prime (1372731197) and next prime (1372731203).

It can be written as a sum of positive squares in 3 ways, for example, as 143808064 + 1228923136 = 11992^2 + 35056^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1372731200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372731203) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 427379 + ... + 430578.

Almost surely, 2^1372731200 is an apocalyptic number.

1372731200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372731200 is an abundant number, since it is smaller than the sum of its proper divisors (2005049446).

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

1372731200 is an equidigital number, since it uses as much as digits as its factorization.

1372731200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857979 (or 857964 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 1372731200 is about 37050.3873124155. The cubic root of 1372731200 is about 1111.3781005806.

The spelling of 1372731200 in words is "one billion, three hundred seventy-two million, seven hundred thirty-one thousand, two hundred".