1377204420 has 48 divisors (see below), whose sum is σ = 3867671808. Its totient is φ = 366159360.

The previous prime is 1377204377. The next prime is 1377204431. The reversal of 1377204420 is 244027731.

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

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 15 ways as a sum of consecutive naturals, for example, 13836 + ... + 54275.

It is an arithmetic number, because the mean of its divisors is an integer number (80576496).

Almost surely, 2^1377204420 is an apocalyptic number.

1377204420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377204420 is an abundant number, since it is smaller than the sum of its proper divisors (2490467388).

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

1377204420 is a wasteful number, since it uses less digits than its factorization.

1377204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68460 (or 68458 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 1377204420 is about 37110.7049245902. The cubic root of 1377204420 is about 1112.5839808673.

The spelling of 1377204420 in words is "one billion, three hundred seventy-seven million, two hundred four thousand, four hundred twenty".