69825280 has 72 divisors (see below), whose sum is σ = 191171232. Its totient is φ = 23937024.

The previous prime is 69825257. The next prime is 69825289. The reversal of 69825280 is 8252896.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (69825289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5064 + ... + 12856.

It is an arithmetic number, because the mean of its divisors is an integer number (2655156).

Almost surely, 2^69825280 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 69825280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95585616).

69825280 is an abundant number, since it is smaller than the sum of its proper divisors (121345952).

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

69825280 is an equidigital number, since it uses as much as digits as its factorization.

69825280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7821 (or 7807 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 69825280 is about 8356.1522245589. The cubic root of 69825280 is about 411.7853533624.

The spelling of 69825280 in words is "sixty-nine million, eight hundred twenty-five thousand, two hundred eighty".