1377320320 has 32 divisors (see below), whose sum is σ = 3292657920. Its totient is φ = 550927872.

The previous prime is 1377320299. The next prime is 1377320369. The reversal of 1377320320 is 230237731.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1377320320² = 3794022527769804800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075392 + ... + 1076671.

It is an arithmetic number, because the mean of its divisors is an integer number (102895560).

Almost surely, 2^1377320320 is an apocalyptic number.

1377320320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377320320 is an abundant number, since it is smaller than the sum of its proper divisors (1915337600).

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

1377320320 is an equidigital number, since it uses as much as digits as its factorization.

1377320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152082 (or 2152070 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 1377320320 is about 37112.2664357757. The cubic root of 1377320320 is about 1112.6151901935.

The spelling of 1377320320 in words is "one billion, three hundred seventy-seven million, three hundred twenty thousand, three hundred twenty".