1372831920 has 60 divisors (see below), whose sum is σ = 4610429616. Its totient is φ = 366088320.

The previous prime is 1372831907. The next prime is 1372831937. The reversal of 1372831920 is 291382731.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 952636 + ... + 954075.

Almost surely, 2^1372831920 is an apocalyptic number.

1372831920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372831920 is an abundant number, since it is smaller than the sum of its proper divisors (3237597696).

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

1372831920 is a wasteful number, since it uses less digits than its factorization.

1372831920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906730 (or 1906721 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1372831920 is about 37051.7465175395. The cubic root of 1372831920 is about 1111.4052812514.

The spelling of 1372831920 in words is "one billion, three hundred seventy-two million, eight hundred thirty-one thousand, nine hundred twenty".