1372552320 has 128 divisors (see below), whose sum is σ = 4430880000. Its totient is φ = 361340928.

The previous prime is 1372552297. The next prime is 1372552361. The reversal of 1372552320 is 232552731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1372552320² = 3767799742274764800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147156 + ... + 156204.

It is an arithmetic number, because the mean of its divisors is an integer number (34616250).

Almost surely, 2^1372552320 is an apocalyptic number.

1372552320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372552320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2215440000).

1372552320 is an abundant number, since it is smaller than the sum of its proper divisors (3058327680).

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

1372552320 is an equidigital number, since it uses as much as digits as its factorization.

1372552320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9150 (or 9138 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 1372552320 is about 37047.9732239160. The cubic root of 1372552320 is about 1111.3298240861.

The spelling of 1372552320 in words is "one billion, three hundred seventy-two million, five hundred fifty-two thousand, three hundred twenty".