1376641044 has 72 divisors (see below), whose sum is σ = 3606162560. Its totient is φ = 442495872.

The previous prime is 1376641037. The next prime is 1376641069. The reversal of 1376641044 is 4401466731.

1376641044 is a `hidden beast` number, since 1 + 3 + 7 + 6 + 641 + 0 + 4 + 4 = 666.

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

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 23 ways as a sum of consecutive naturals, for example, 116664 + ... + 127920.

Almost surely, 2^1376641044 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 1376641044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1803081280).

1376641044 is an abundant number, since it is smaller than the sum of its proper divisors (2229521516).

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

1376641044 is a wasteful number, since it uses less digits than its factorization.

1376641044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11389 (or 11384 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1376641044 is about 37103.1136698795. The cubic root of 1376641044 is about 1112.4322511283.

The spelling of 1376641044 in words is "one billion, three hundred seventy-six million, six hundred forty-one thousand, forty-four".