69018980 has 36 divisors (see below), whose sum is σ = 153980148. Its totient is φ = 25981440.

The previous prime is 69018979. The next prime is 69018991. The reversal of 69018980 is 8981096.

It can be written as a sum of positive squares in 6 ways, for example, as 692224 + 68326756 = 832^2 + 8266^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191 + ... + 11750.

Almost surely, 2^69018980 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 69018980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76990074).

69018980 is an abundant number, since it is smaller than the sum of its proper divisors (84961168).

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

69018980 is a wasteful number, since it uses less digits than its factorization.

69018980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11984 (or 11965 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 69018980 is about 8307.7662461097. The cubic root of 69018980 is about 410.1941971173.

The spelling of 69018980 in words is "sixty-nine million, eighteen thousand, nine hundred eighty".