138684296 has 16 divisors (see below), whose sum is σ = 271339200. Its totient is φ = 66327184.

The previous prime is 138684281. The next prime is 138684311. The reversal of 138684296 is 692486831.

It is an interprime number because it is at equal distance from previous prime (138684281) and next prime (138684311).

It is a self number, because there is not a number n which added to its sum of digits gives 138684296.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376676 + ... + 377043.

It is an arithmetic number, because the mean of its divisors is an integer number (16958700).

Almost surely, 2^138684296 is an apocalyptic number.

It is an amenable number.

138684296 is a deficient number, since it is larger than the sum of its proper divisors (132654904).

138684296 is a wasteful number, since it uses less digits than its factorization.

138684296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753748 (or 753744 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 138684296 is about 11776.4296796610. The cubic root of 138684296 is about 517.6176722926.

The spelling of 138684296 in words is "one hundred thirty-eight million, six hundred eighty-four thousand, two hundred ninety-six".