45091786 has 16 divisors (see below), whose sum is σ = 71762760. Its totient is φ = 21176320.

The previous prime is 45091777. The next prime is 45091829. The reversal of 45091786 is 68719054.

It can be written as a sum of positive squares in 4 ways, for example, as 43309561 + 1782225 = 6581^2 + 1335^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20760 + ... + 22828.

Almost surely, 2^45091786 is an apocalyptic number.

45091786 is a deficient number, since it is larger than the sum of its proper divisors (26670974).

45091786 is a wasteful number, since it uses less digits than its factorization.

45091786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 45091786 is about 6715.0417720220. The cubic root of 45091786 is about 355.9309980729.

The spelling of 45091786 in words is "forty-five million, ninety-one thousand, seven hundred eighty-six".