69438992 has 40 divisors (see below), whose sum is σ = 159067200. Its totient is φ = 28732032.

The previous prime is 69438991. The next prime is 69438997. The reversal of 69438992 is 29983496.

It is a self number, because there is not a number n which added to its sum of digits gives 69438992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69438991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7442 + ... + 13937.

It is an arithmetic number, because the mean of its divisors is an integer number (3976680).

Almost surely, 2^69438992 is an apocalyptic number.

It is an amenable number.

69438992 is an abundant number, since it is smaller than the sum of its proper divisors (89628208).

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

69438992 is a wasteful number, since it uses less digits than its factorization.

69438992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21423 (or 21417 counting only the distinct ones).

The product of its digits is 839808, while the sum is 50.

The square root of 69438992 is about 8333.0061802449. The cubic root of 69438992 is about 411.0245879327.

The spelling of 69438992 in words is "sixty-nine million, four hundred thirty-eight thousand, nine hundred ninety-two".