45578790 has 48 divisors (see below), whose sum is σ = 119637648. Its totient is φ = 12038208.

The previous prime is 45578779. The next prime is 45578803. The reversal of 45578790 is 9787554.

45578790 is a `hidden beast` number, since 4 + 5 + 578 + 79 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7264 + ... + 11996.

It is an arithmetic number, because the mean of its divisors is an integer number (2492451).

Almost surely, 2^45578790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45578790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59818824).

45578790 is an abundant number, since it is smaller than the sum of its proper divisors (74058858).

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

45578790 is a wasteful number, since it uses less digits than its factorization.

45578790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853 (or 4850 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 45578790 is about 6751.2065588308. The cubic root of 45578790 is about 357.2077974862.

The spelling of 45578790 in words is "forty-five million, five hundred seventy-eight thousand, seven hundred ninety".