69240864 has 384 divisors, whose sum is σ = 261273600. Its totient is φ = 15482880.

The previous prime is 69240851. The next prime is 69240907. The reversal of 69240864 is 46804296.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2387602 + ... + 2387630.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^69240864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69240864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130636800).

69240864 is an abundant number, since it is smaller than the sum of its proper divisors (192032736).

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

69240864 is a wasteful number, since it uses less digits than its factorization.

69240864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 69240864 is about 8321.1095414013. The cubic root of 69240864 is about 410.6332945464.

The spelling of 69240864 in words is "sixty-nine million, two hundred forty thousand, eight hundred sixty-four".