1377461880 has 48 divisors (see below), whose sum is σ = 4476752280. Its totient is φ = 367323072.

The previous prime is 1377461861. The next prime is 1377461903. The reversal of 1377461880 is 881647731.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1912782 + ... + 1913501.

Almost surely, 2^1377461880 is an apocalyptic number.

1377461880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377461880 is an abundant number, since it is smaller than the sum of its proper divisors (3099290400).

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

1377461880 is a wasteful number, since it uses less digits than its factorization.

1377461880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826300 (or 3826293 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1377461880 is about 37114.1735729088. The cubic root of 1377461880 is about 1112.6533068196.

The spelling of 1377461880 in words is "one billion, three hundred seventy-seven million, four hundred sixty-one thousand, eight hundred eighty".