1372753220 has 12 divisors (see below), whose sum is σ = 2882781804. Its totient is φ = 549101280.

The previous prime is 1372753201. The next prime is 1372753271. The reversal of 1372753220 is 223572731.

It can be written as a sum of positive squares in 2 ways, for example, as 478384384 + 894368836 = 21872^2 + 29906^2 .

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 3 ways as a sum of consecutive naturals, for example, 34318811 + ... + 34318850.

It is an arithmetic number, because the mean of its divisors is an integer number (240231817).

Almost surely, 2^1372753220 is an apocalyptic number.

1372753220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372753220 is an abundant number, since it is smaller than the sum of its proper divisors (1510028584).

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

1372753220 is a wasteful number, since it uses less digits than its factorization.

1372753220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68637670 (or 68637668 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 1372753220 is about 37050.6844741092. The cubic root of 1372753220 is about 1111.3840430926.

The spelling of 1372753220 in words is "one billion, three hundred seventy-two million, seven hundred fifty-three thousand, two hundred twenty".