45089784 has 80 divisors (see below), whose sum is σ = 127413000. Its totient is φ = 14897088.

The previous prime is 45089773. The next prime is 45089789. The reversal of 45089784 is 48798054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45089789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 96319 + ... + 96785.

Almost surely, 2^45089784 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 45089784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63706500).

45089784 is an abundant number, since it is smaller than the sum of its proper divisors (82323216).

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

45089784 is a wasteful number, since it uses less digits than its factorization.

45089784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 45089784 is about 6714.8927020467. The cubic root of 45089784 is about 355.9257304143.

The spelling of 45089784 in words is "forty-five million, eighty-nine thousand, seven hundred eighty-four".