1376123904 has 220 divisors, whose sum is σ = 4208697504. Its totient is φ = 447676416.

The previous prime is 1376123899. The next prime is 1376123911. The reversal of 1376123904 is 4093216731.

1376123904 is a `hidden beast` number, since 1 + 3 + 7 + 612 + 39 + 0 + 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 19 ways as a sum of consecutive naturals, for example, 3898192 + ... + 3898544.

Almost surely, 2^1376123904 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 1376123904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104348752).

1376123904 is an abundant number, since it is smaller than the sum of its proper divisors (2832573600).

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

1376123904 is an equidigital number, since it uses as much as digits as its factorization.

1376123904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1376123904 is about 37096.1440583789. The cubic root of 1376123904 is about 1112.2929373332.

The spelling of 1376123904 in words is "one billion, three hundred seventy-six million, one hundred twenty-three thousand, nine hundred four".