69944928 has 96 divisors (see below), whose sum is σ = 199664640. Its totient is φ = 21358080.

The previous prime is 69944899. The next prime is 69944933. The reversal of 69944928 is 82944996.

It is a happy number.

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

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, 55926 + ... + 57162.

It is an arithmetic number, because the mean of its divisors is an integer number (2079840).

Almost surely, 2^69944928 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 69944928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99832320).

69944928 is an abundant number, since it is smaller than the sum of its proper divisors (129719712).

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

69944928 is a wasteful number, since it uses less digits than its factorization.

69944928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1292 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 69944928 is about 8363.3084362589. The cubic root of 69944928 is about 412.0204218991.

The spelling of 69944928 in words is "sixty-nine million, nine hundred forty-four thousand, nine hundred twenty-eight".