69428448 has 96 divisors (see below), whose sum is σ = 204664320. Its totient is φ = 22896000.

The previous prime is 69428417. The next prime is 69428477. The reversal of 69428448 is 84482496.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92073 + ... + 92823.

It is an arithmetic number, because the mean of its divisors is an integer number (2131920).

Almost surely, 2^69428448 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 69428448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102332160).

69428448 is an abundant number, since it is smaller than the sum of its proper divisors (135235872).

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

69428448 is a wasteful number, since it uses less digits than its factorization.

69428448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 863 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 69428448 is about 8332.3734913889. The cubic root of 69428448 is about 411.0037827986.

The spelling of 69428448 in words is "sixty-nine million, four hundred twenty-eight thousand, four hundred forty-eight".