45641818 has 8 divisors (see below), whose sum is σ = 68498100. Its totient is φ = 22809120.

The previous prime is 45641803. The next prime is 45641837. The reversal of 45641818 is 81814654.

It can be written as a sum of positive squares in 2 ways, for example, as 45603009 + 38809 = 6753^2 + 197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208 + ... + 9556.

Almost surely, 2^45641818 is an apocalyptic number.

45641818 is a deficient number, since it is larger than the sum of its proper divisors (22856282).

45641818 is a wasteful number, since it uses less digits than its factorization.

45641818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792.

The product of its digits is 30720, while the sum is 37.

The square root of 45641818 is about 6755.8728525632. The cubic root of 45641818 is about 357.3723749374.

The spelling of 45641818 in words is "forty-five million, six hundred forty-one thousand, eight hundred eighteen".