1377138084 has 24 divisors (see below), whose sum is σ = 3672368448. Its totient is φ = 393468000.

The previous prime is 1377138019. The next prime is 1377138101. The reversal of 1377138084 is 4808317731.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8197167 + ... + 8197334.

It is an arithmetic number, because the mean of its divisors is an integer number (153015352).

Almost surely, 2^1377138084 is an apocalyptic number.

1377138084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1377138084 is an abundant number, since it is smaller than the sum of its proper divisors (2295230364).

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

1377138084 is a wasteful number, since it uses less digits than its factorization.

1377138084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16394515 (or 16394513 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1377138084 is about 37109.8111555421. The cubic root of 1377138084 is about 1112.5661172505.

The spelling of 1377138084 in words is "one billion, three hundred seventy-seven million, one hundred thirty-eight thousand, eighty-four".