45516218 has 24 divisors (see below), whose sum is σ = 77880096. Its totient is φ = 19784600.

The previous prime is 45516217. The next prime is 45516221. The reversal of 45516218 is 81261554.

It is a super-2 number, since 2×45516218² = 4143452202047048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45516217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9683 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (3245004).

Almost surely, 2^45516218 is an apocalyptic number.

45516218 is a deficient number, since it is larger than the sum of its proper divisors (32363878).

45516218 is a wasteful number, since it uses less digits than its factorization.

45516218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970 (or 3947 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 45516218 is about 6746.5708326527. The cubic root of 45516218 is about 357.0442605848.

The spelling of 45516218 in words is "forty-five million, five hundred sixteen thousand, two hundred eighteen".