69994280 has 64 divisors (see below), whose sum is σ = 166164480. Its totient is φ = 26496000.

The previous prime is 69994279. The next prime is 69994283. The reversal of 69994280 is 8249996.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (69994283) 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, 57680 + ... + 58880.

It is an arithmetic number, because the mean of its divisors is an integer number (2596320).

Almost surely, 2^69994280 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 69994280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83082240).

69994280 is an abundant number, since it is smaller than the sum of its proper divisors (96170200).

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

69994280 is a wasteful number, since it uses less digits than its factorization.

69994280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290 (or 1286 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 69994280 is about 8366.2584229750. The cubic root of 69994280 is about 412.1173040789.

The spelling of 69994280 in words is "sixty-nine million, nine hundred ninety-four thousand, two hundred eighty".