45866391 has 32 divisors (see below), whose sum is σ = 67995648. Its totient is φ = 27371520.

The previous prime is 45866389. The next prime is 45866461. The reversal of 45866391 is 19366854.

It is not a de Polignac number, because 45866391 - 2¹ = 45866389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45866311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105711 + ... + 106143.

It is an arithmetic number, because the mean of its divisors is an integer number (2124864).

Almost surely, 2^45866391 is an apocalyptic number.

45866391 is a deficient number, since it is larger than the sum of its proper divisors (22129257).

45866391 is a wasteful number, since it uses less digits than its factorization.

45866391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

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

The square root of 45866391 is about 6772.4730342763. The cubic root of 45866391 is about 357.9575467485.

The spelling of 45866391 in words is "forty-five million, eight hundred sixty-six thousand, three hundred ninety-one".