138738576 has 40 divisors (see below), whose sum is σ = 373993920. Its totient is φ = 44235136.

The previous prime is 138738569. The next prime is 138738659. The reversal of 138738576 is 675837831.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 61731 + ... + 63938.

It is an arithmetic number, because the mean of its divisors is an integer number (9349848).

Almost surely, 2^138738576 is an apocalyptic number.

138738576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138738576 is an abundant number, since it is smaller than the sum of its proper divisors (235255344).

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

138738576 is a wasteful number, since it uses less digits than its factorization.

138738576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125703 (or 125697 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 138738576 is about 11778.7340576142. The cubic root of 138738576 is about 517.6851940508.

The spelling of 138738576 in words is "one hundred thirty-eight million, seven hundred thirty-eight thousand, five hundred seventy-six".