3778138392 has 64 divisors (see below), whose sum is σ = 11142912000. Its totient is φ = 1044645120.

The previous prime is 3778138379. The next prime is 3778138421. The reversal of 3778138392 is 2938318773.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357517 + ... + 367932.

It is an arithmetic number, because the mean of its divisors is an integer number (174108000).

Almost surely, 2^3778138392 is an apocalyptic number.

It is an amenable number.

3778138392 is an abundant number, since it is smaller than the sum of its proper divisors (7364773608).

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

3778138392 is a wasteful number, since it uses less digits than its factorization.

3778138392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725496 (or 725492 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 3778138392 is about 61466.5632030944. The cubic root of 3778138392 is about 1557.4924639983.

The spelling of 3778138392 in words is "three billion, seven hundred seventy-eight million, one hundred thirty-eight thousand, three hundred ninety-two".