1376481872 has 20 divisors (see below), whose sum is σ = 2676433236. Its totient is φ = 685789440.

The previous prime is 1376481853. The next prime is 1376481907. The reversal of 1376481872 is 2781846731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 546811456 + 829670416 = 23384^2 + 28804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148583 + ... + 157574.

Almost surely, 2^1376481872 is an apocalyptic number.

It is an amenable number.

1376481872 is a deficient number, since it is larger than the sum of its proper divisors (1299951364).

1376481872 is a wasteful number, since it uses less digits than its factorization.

1376481872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306446 (or 306440 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 1376481872 is about 37100.9686126926. The cubic root of 1376481872 is about 1112.3893750540.

The spelling of 1376481872 in words is "one billion, three hundred seventy-six million, four hundred eighty-one thousand, eight hundred seventy-two".