1055372720 has 20 divisors (see below), whose sum is σ = 2453741760. Its totient is φ = 422149056.

The previous prime is 1055372671. The next prime is 1055372737. The reversal of 1055372720 is 272735501.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1055372720² = 2227623156240396800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6596000 + ... + 6596159.

It is an arithmetic number, because the mean of its divisors is an integer number (122687088).

Almost surely, 2^1055372720 is an apocalyptic number.

1055372720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055372720 is an abundant number, since it is smaller than the sum of its proper divisors (1398369040).

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

1055372720 is a wasteful number, since it uses less digits than its factorization.

1055372720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13192172 (or 13192166 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 1055372720 is about 32486.5005810106. The cubic root of 1055372720 is about 1018.1269997736.

The spelling of 1055372720 in words is "one billion, fifty-five million, three hundred seventy-two thousand, seven hundred twenty".