45440784 has 80 divisors (see below), whose sum is σ = 131241600. Its totient is φ = 15053184.

The previous prime is 45440783. The next prime is 45440827. The reversal of 45440784 is 48704454.

45440784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (45440783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126397 + ... + 126755.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^45440784 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 45440784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65620800).

45440784 is an abundant number, since it is smaller than the sum of its proper divisors (85800816).

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

45440784 is a wasteful number, since it uses less digits than its factorization.

45440784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 45440784 is about 6740.9779705915. The cubic root of 45440784 is about 356.8469084432.

The spelling of 45440784 in words is "forty-five million, four hundred forty thousand, seven hundred eighty-four".