45778928 has 40 divisors (see below), whose sum is σ = 96327168. Its totient is φ = 20950272.

The previous prime is 45778913. The next prime is 45778937. The reversal of 45778928 is 82987754.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25550 + ... + 27282.

Almost surely, 2^45778928 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 45778928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48163584).

45778928 is an abundant number, since it is smaller than the sum of its proper divisors (50548240).

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

45778928 is a wasteful number, since it uses less digits than its factorization.

45778928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1875 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 45778928 is about 6766.0127105999. The cubic root of 45778928 is about 357.7298712338.

The spelling of 45778928 in words is "forty-five million, seven hundred seventy-eight thousand, nine hundred twenty-eight".