69228864 has 56 divisors (see below), whose sum is σ = 203525120. Its totient is φ = 23075712.

The previous prime is 69228857. The next prime is 69228877. The reversal of 69228864 is 46882296.

It is a super-2 number, since 2×69228864² = 9585271221460992, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 18304 + ... + 21759.

Almost surely, 2^69228864 is an apocalyptic number.

69228864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

69228864 is an abundant number, since it is smaller than the sum of its proper divisors (134296256).

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

69228864 is a wasteful number, since it uses less digits than its factorization.

69228864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40084 (or 40068 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 69228864 is about 8320.3884524702. The cubic root of 69228864 is about 410.6095711557.

The spelling of 69228864 in words is "sixty-nine million, two hundred twenty-eight thousand, eight hundred sixty-four".