69418980 has 36 divisors (see below), whose sum is σ = 210571452. Its totient is φ = 18511680.

The previous prime is 69418969. The next prime is 69418981. The reversal of 69418980 is 8981496.

It can be written as a sum of positive squares in 2 ways, for example, as 50808384 + 18610596 = 7128^2 + 4314^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (69418981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192651 + ... + 193010.

It is an arithmetic number, because the mean of its divisors is an integer number (5849207).

Almost surely, 2^69418980 is an apocalyptic number.

69418980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69418980 is an abundant number, since it is smaller than the sum of its proper divisors (141152472).

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

69418980 is a wasteful number, since it uses less digits than its factorization.

69418980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385676 (or 385671 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 69418980 is about 8331.8053265784. The cubic root of 69418980 is about 410.9850990033.

The spelling of 69418980 in words is "sixty-nine million, four hundred eighteen thousand, nine hundred eighty".