69340880 has 150 divisors (see below), whose sum is σ = 198495666. Its totient is φ = 22522752.

The previous prime is 69340853. The next prime is 69340927. The reversal of 69340880 is 8804396.

It can be written as a sum of positive squares in only one way, i.e., 55472704 + 13868176 = 7448^2 + 3724^2 .

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3649511 + ... + 3649529.

Almost surely, 2^69340880 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 69340880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99247833).

69340880 is an abundant number, since it is smaller than the sum of its proper divisors (129154786).

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

69340880 is an equidigital number, since it uses as much as digits as its factorization.

69340880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 69340880 is about 8327.1171482092. The cubic root of 69340880 is about 410.8309145567.

The spelling of 69340880 in words is "sixty-nine million, three hundred forty thousand, eight hundred eighty".