45479818 has 4 divisors (see below), whose sum is σ = 68219730. Its totient is φ = 22739908.

The previous prime is 45479813. The next prime is 45479849. The reversal of 45479818 is 81897454.

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

It can be written as a sum of positive squares in only one way, i.e., 40157569 + 5322249 = 6337^2 + 2307^2 .

It is not an unprimeable number, because it can be changed into a prime (45479813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11369953 + ... + 11369956.

Almost surely, 2^45479818 is an apocalyptic number.

45479818 is a deficient number, since it is larger than the sum of its proper divisors (22739912).

45479818 is a wasteful number, since it uses less digits than its factorization.

45479818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22739911.

The product of its digits is 322560, while the sum is 46.

The square root of 45479818 is about 6743.8726263179. The cubic root of 45479818 is about 356.9490573242.

It can be divided in two parts, 4547 and 9818, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 45479818 in words is "forty-five million, four hundred seventy-nine thousand, eight hundred eighteen".