69385680 has 320 divisors, whose sum is σ = 294981120. Its totient is φ = 14598144.

The previous prime is 69385649. The next prime is 69385691. The reversal of 69385680 is 8658396.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 196384 + ... + 196736.

It is an arithmetic number, because the mean of its divisors is an integer number (921816).

Almost surely, 2^69385680 is an apocalyptic number.

69385680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69385680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147490560).

69385680 is an abundant number, since it is smaller than the sum of its proper divisors (225595440).

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

69385680 is a wasteful number, since it uses less digits than its factorization.

69385680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 69385680 is about 8329.8067204468. The cubic root of 69385680 is about 410.9193725372.

The spelling of 69385680 in words is "sixty-nine million, three hundred eighty-five thousand, six hundred eighty".