45444782 has 4 divisors (see below), whose sum is σ = 68167176. Its totient is φ = 22722390.

The previous prime is 45444781. The next prime is 45444793. The reversal of 45444782 is 28744454.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×45444782² = 4130456422055048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45444781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11361194 + ... + 11361197.

It is an arithmetic number, because the mean of its divisors is an integer number (17041794).

Almost surely, 2^45444782 is an apocalyptic number.

45444782 is a deficient number, since it is larger than the sum of its proper divisors (22722394).

45444782 is a wasteful number, since it uses less digits than its factorization.

45444782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22722393.

The product of its digits is 143360, while the sum is 38.

The square root of 45444782 is about 6741.2745085777. The cubic root of 45444782 is about 356.8573735803.

The spelling of 45444782 in words is "forty-five million, four hundred forty-four thousand, seven hundred eighty-two".