69540464 has 80 divisors (see below), whose sum is σ = 160698048. Its totient is φ = 28532736.

The previous prime is 69540451. The next prime is 69540479. The reversal of 69540464 is 46404596.

It is a happy number.

It is a super-2 number, since 2×69540464² = 9671752266670592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401882 + ... + 402054.

Almost surely, 2^69540464 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 69540464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80349024).

69540464 is an abundant number, since it is smaller than the sum of its proper divisors (91157584).

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

69540464 is a wasteful number, since it uses less digits than its factorization.

69540464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 69540464 is about 8339.0925165752. The cubic root of 69540464 is about 411.2247021452.

The spelling of 69540464 in words is "sixty-nine million, five hundred forty thousand, four hundred sixty-four".