138676364 has 12 divisors (see below), whose sum is σ = 255456600. Its totient is φ = 65688768.

The previous prime is 138676339. The next prime is 138676379. The reversal of 138676364 is 463676831.

It is a super-2 number, since 2×138676364² = 38462267864520992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912269 + ... + 912420.

It is an arithmetic number, because the mean of its divisors is an integer number (21288050).

Almost surely, 2^138676364 is an apocalyptic number.

It is an amenable number.

138676364 is a deficient number, since it is larger than the sum of its proper divisors (116780236).

138676364 is a wasteful number, since it uses less digits than its factorization.

138676364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824712 (or 1824710 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 138676364 is about 11776.0929004488. The cubic root of 138676364 is about 517.6078037837.

The spelling of 138676364 in words is "one hundred thirty-eight million, six hundred seventy-six thousand, three hundred sixty-four".