45193866 has 16 divisors (see below), whose sum is σ = 90556704. Its totient is φ = 15036464.

The previous prime is 45193859. The next prime is 45193867. The reversal of 45193866 is 66839154.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45193867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3420 + ... + 10103.

It is an arithmetic number, because the mean of its divisors is an integer number (5659794).

Almost surely, 2^45193866 is an apocalyptic number.

45193866 is an abundant number, since it is smaller than the sum of its proper divisors (45362838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45193866 is a wasteful number, since it uses less digits than its factorization.

45193866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14085.

The product of its digits is 155520, while the sum is 42.

The square root of 45193866 is about 6722.6383213735. The cubic root of 45193866 is about 356.1993843756.

It can be divided in two parts, 4519 and 3866, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 45193866 in words is "forty-five million, one hundred ninety-three thousand, eight hundred sixty-six".