1377925388 has 12 divisors (see below), whose sum is σ = 2755850832. Its totient is φ = 590539440.

The previous prime is 1377925387. The next prime is 1377925397. The reversal of 1377925388 is 8835297731.

1377925388 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1377925387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24605783 + ... + 24605838.

It is an arithmetic number, because the mean of its divisors is an integer number (229654236).

Almost surely, 2^1377925388 is an apocalyptic number.

It is an amenable number.

1377925388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1377925388 is a wasteful number, since it uses less digits than its factorization.

1377925388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49211632 (or 49211630 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 53.

The square root of 1377925388 is about 37120.4174006705. The cubic root of 1377925388 is about 1112.7780933034.

The spelling of 1377925388 in words is "one billion, three hundred seventy-seven million, nine hundred twenty-five thousand, three hundred eighty-eight".