45866818 has 4 divisors (see below), whose sum is σ = 68800230. Its totient is φ = 22933408.

The previous prime is 45866801. The next prime is 45866831. The reversal of 45866818 is 81866854.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81866854 = 2 ⋅40933427.

It can be written as a sum of positive squares in only one way, i.e., 45792289 + 74529 = 6767^2 + 273^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11466703 + ... + 11466706.

Almost surely, 2^45866818 is an apocalyptic number.

45866818 is a deficient number, since it is larger than the sum of its proper divisors (22933412).

45866818 is a wasteful number, since it uses less digits than its factorization.

45866818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22933411.

The product of its digits is 368640, while the sum is 46.

The square root of 45866818 is about 6772.5045588763. The cubic root of 45866818 is about 357.9586575648.

It can be divided in two parts, 458 and 66818, that added together give a palindrome (67276).

The spelling of 45866818 in words is "forty-five million, eight hundred sixty-six thousand, eight hundred eighteen".