69042680 has 64 divisors (see below), whose sum is σ = 178606080. Its totient is φ = 23529600.

The previous prime is 69042613. The next prime is 69042689. The reversal of 69042680 is 8624096.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 69042680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69042689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52835 + ... + 54125.

It is an arithmetic number, because the mean of its divisors is an integer number (2790720).

Almost surely, 2^69042680 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 69042680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89303040).

69042680 is an abundant number, since it is smaller than the sum of its proper divisors (109563400).

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

69042680 is a wasteful number, since it uses less digits than its factorization.

69042680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 69042680 is about 8309.1924998763. The cubic root of 69042680 is about 410.2411430924.

The spelling of 69042680 in words is "sixty-nine million, forty-two thousand, six hundred eighty".