138802386 has 16 divisors (see below), whose sum is σ = 278640000. Its totient is φ = 46094928.

The previous prime is 138802369. The next prime is 138802387. The reversal of 138802386 is 683208831.

It is a super-2 number, since 2×138802386² = 38532204718585992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138802387) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41386 + ... + 44613.

It is an arithmetic number, because the mean of its divisors is an integer number (17415000).

Almost surely, 2^138802386 is an apocalyptic number.

138802386 is an abundant number, since it is smaller than the sum of its proper divisors (139837614).

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

138802386 is a wasteful number, since it uses less digits than its factorization.

138802386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86273.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 138802386 is about 11781.4424413991. The cubic root of 138802386 is about 517.7645481620.

The spelling of 138802386 in words is "one hundred thirty-eight million, eight hundred two thousand, three hundred eighty-six".