45861866 has 4 divisors (see below), whose sum is σ = 68792802. Its totient is φ = 22930932.

The previous prime is 45861863. The next prime is 45861887. The reversal of 45861866 is 66816854.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43943641 + 1918225 = 6629^2 + 1385^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45861863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11465465 + ... + 11465468.

Almost surely, 2^45861866 is an apocalyptic number.

45861866 is a deficient number, since it is larger than the sum of its proper divisors (22930936).

45861866 is a wasteful number, since it uses less digits than its factorization.

45861866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22930935.

The product of its digits is 276480, while the sum is 44.

The square root of 45861866 is about 6772.1389530930. The cubic root of 45861866 is about 357.9457747943.

The spelling of 45861866 in words is "forty-five million, eight hundred sixty-one thousand, eight hundred sixty-six".