69228528 has 80 divisors (see below), whose sum is σ = 189392640. Its totient is φ = 21745152.

The previous prime is 69228527. The next prime is 69228553. The reversal of 69228528 is 82582296.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (138240) is a multiple of the sum of its prime divisors (960).

It is a self number, because there is not a number n which added to its sum of digits gives 69228528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69228527) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 80163 + ... + 81021.

It is an arithmetic number, because the mean of its divisors is an integer number (2367408).

Almost surely, 2^69228528 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 69228528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94696320).

69228528 is an abundant number, since it is smaller than the sum of its proper divisors (120164112).

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

69228528 is a wasteful number, since it uses less digits than its factorization.

69228528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 960 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 69228528 is about 8320.3682610808. The cubic root of 69228528 is about 410.6089068613.

The spelling of 69228528 in words is "sixty-nine million, two hundred twenty-eight thousand, five hundred twenty-eight".