1377044136 has 96 divisors (see below), whose sum is σ = 4039308000. Its totient is φ = 421287552.

The previous prime is 1377044101. The next prime is 1377044161. The reversal of 1377044136 is 6314407731.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1377044136.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163435 + ... + 171653.

It is an arithmetic number, because the mean of its divisors is an integer number (42076125).

Almost surely, 2^1377044136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377044136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2019654000).

1377044136 is an abundant number, since it is smaller than the sum of its proper divisors (2662263864).

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

1377044136 is a wasteful number, since it uses less digits than its factorization.

1377044136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423 (or 8416 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 1377044136 is about 37108.5453231463. The cubic root of 1377044136 is about 1112.5408170186.

The spelling of 1377044136 in words is "one billion, three hundred seventy-seven million, forty-four thousand, one hundred thirty-six".