45190866 has 16 divisors (see below), whose sum is σ = 103293504. Its totient is φ = 12911664.

The previous prime is 45190843. The next prime is 45190891. The reversal of 45190866 is 66809154.

45190866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537945 + ... + 538028.

It is an arithmetic number, because the mean of its divisors is an integer number (6455844).

Almost surely, 2^45190866 is an apocalyptic number.

45190866 is an abundant number, since it is smaller than the sum of its proper divisors (58102638).

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

45190866 is a wasteful number, since it uses less digits than its factorization.

45190866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075985.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 45190866 is about 6722.4151909860. The cubic root of 45190866 is about 356.1915026142.

It can be divided in two parts, 45190 and 866, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 45190866 in words is "forty-five million, one hundred ninety thousand, eight hundred sixty-six".