1377828402 has 16 divisors (see below), whose sum is σ = 2786620320. Its totient is φ = 454115552.

The previous prime is 1377828391. The next prime is 1377828421. The reversal of 1377828402 is 2048287731.

It is a super-2 number, since 2×1377828402² = 3796822210715747208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1289568 + ... + 1290635.

It is an arithmetic number, because the mean of its divisors is an integer number (174163770).

Almost surely, 2^1377828402 is an apocalyptic number.

1377828402 is an abundant number, since it is smaller than the sum of its proper divisors (1408791918).

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

1377828402 is a wasteful number, since it uses less digits than its factorization.

1377828402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580297.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 1377828402 is about 37119.1110076737. Note that the first 3 decimals coincide. The cubic root of 1377828402 is about 1112.7519848679.

The spelling of 1377828402 in words is "one billion, three hundred seventy-seven million, eight hundred twenty-eight thousand, four hundred two".