45864642 has 8 divisors (see below), whose sum is σ = 91729296. Its totient is φ = 15288212.

The previous prime is 45864641. The next prime is 45864661. The reversal of 45864642 is 24646854.

It is a sphenic number, since it is the product of 3 distinct primes.

45864642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 45864642.

It is not an unprimeable number, because it can be changed into a prime (45864641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3822048 + ... + 3822059.

It is an arithmetic number, because the mean of its divisors is an integer number (11466162).

Almost surely, 2^45864642 is an apocalyptic number.

45864642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45864642 is a wasteful number, since it uses less digits than its factorization.

45864642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644112.

The product of its digits is 184320, while the sum is 39.

The square root of 45864642 is about 6772.3439073928. The cubic root of 45864642 is about 357.9529967524.

It can be divided in two parts, 4586 and 4642, that multiplied together give a palindrome (21288212).

The spelling of 45864642 in words is "forty-five million, eight hundred sixty-four thousand, six hundred forty-two".