69380280 has 128 divisors (see below), whose sum is σ = 233107200. Its totient is φ = 18354816.

The previous prime is 69380279. The next prime is 69380293. The reversal of 69380280 is 8208396.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245019 + ... + 245301.

It is an arithmetic number, because the mean of its divisors is an integer number (1821150).

Almost surely, 2^69380280 is an apocalyptic number.

69380280 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 69380280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116553600).

69380280 is an abundant number, since it is smaller than the sum of its proper divisors (163726920).

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

69380280 is a wasteful number, since it uses less digits than its factorization.

69380280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 69380280 is about 8329.4825769672. The cubic root of 69380280 is about 410.9087122099.

The spelling of 69380280 in words is "sixty-nine million, three hundred eighty thousand, two hundred eighty".