45765218 has 4 divisors (see below), whose sum is σ = 68647830. Its totient is φ = 22882608.

The previous prime is 45765217. The next prime is 45765227. The reversal of 45765218 is 81256754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81256754 = 2 ⋅40628377.

It can be written as a sum of positive squares in only one way, i.e., 28015849 + 17749369 = 5293^2 + 4213^2 .

It is not an unprimeable number, because it can be changed into a prime (45765217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11441303 + ... + 11441306.

Almost surely, 2^45765218 is an apocalyptic number.

45765218 is a deficient number, since it is larger than the sum of its proper divisors (22882612).

45765218 is a wasteful number, since it uses less digits than its factorization.

45765218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22882611.

The product of its digits is 67200, while the sum is 38.

The square root of 45765218 is about 6764.9994826312. Note that the first 3 decimals coincide. The cubic root of 45765218 is about 357.6941563577.

The spelling of 45765218 in words is "forty-five million, seven hundred sixty-five thousand, two hundred eighteen".