45547788 has 144 divisors (see below), whose sum is σ = 133468160. Its totient is φ = 11975040.

The previous prime is 45547787. The next prime is 45547813. The reversal of 45547788 is 88774554.

Its product of digits (1254400) is a multiple of the sum of its prime divisors (175).

It is not an unprimeable number, because it can be changed into a prime (45547781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 358581 + ... + 358707.

Almost surely, 2^45547788 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 45547788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66734080).

45547788 is an abundant number, since it is smaller than the sum of its proper divisors (87920372).

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

45547788 is a wasteful number, since it uses less digits than its factorization.

45547788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 175 counting only the distinct ones).

The product of its digits is 1254400, while the sum is 48.

The square root of 45547788 is about 6748.9101342365. The cubic root of 45547788 is about 357.1267900124.

The spelling of 45547788 in words is "forty-five million, five hundred forty-seven thousand, seven hundred eighty-eight".