138244676 has 6 divisors (see below), whose sum is σ = 241928190. Its totient is φ = 69122336.

The previous prime is 138244657. The next prime is 138244681. The reversal of 138244676 is 676442831.

It can be written as a sum of positive squares in only one way, i.e., 93702400 + 44542276 = 9680^2 + 6674^2 .

It is a super-2 number, since 2×138244676² = 38223180884689952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17280581 + ... + 17280588.

It is an arithmetic number, because the mean of its divisors is an integer number (40321365).

Almost surely, 2^138244676 is an apocalyptic number.

It is an amenable number.

138244676 is a deficient number, since it is larger than the sum of its proper divisors (103683514).

138244676 is a wasteful number, since it uses less digits than its factorization.

138244676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34561173 (or 34561171 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 138244676 is about 11757.7496146159. The cubic root of 138244676 is about 517.0701554821.

The spelling of 138244676 in words is "one hundred thirty-eight million, two hundred forty-four thousand, six hundred seventy-six".