54428880 has 160 divisors (see below), whose sum is σ = 188023680. Its totient is φ = 12912640.

The previous prime is 54428861. The next prime is 54428893. The reversal of 54428880 is 8882445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139726 + ... + 140114.

It is an arithmetic number, because the mean of its divisors is an integer number (1175148).

Almost surely, 2^54428880 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 54428880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94011840).

54428880 is an abundant number, since it is smaller than the sum of its proper divisors (133594800).

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

54428880 is a wasteful number, since it uses less digits than its factorization.

54428880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 54428880 is about 7377.5931034451. The cubic root of 54428880 is about 378.9743347444.

The spelling of 54428880 in words is "fifty-four million, four hundred twenty-eight thousand, eight hundred eighty".