45972618 has 8 divisors (see below), whose sum is σ = 91945248. Its totient is φ = 15324204.

The previous prime is 45972617. The next prime is 45972631. The reversal of 45972618 is 81627954.

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

45972618 is an admirable number.

It is a super-2 number, since 2×45972618² = 4226963211547848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45972618.

It is not an unprimeable number, because it can be changed into a prime (45972613) 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, 3831046 + ... + 3831057.

It is an arithmetic number, because the mean of its divisors is an integer number (11493156).

Almost surely, 2^45972618 is an apocalyptic number.

45972618 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.

45972618 is a wasteful number, since it uses less digits than its factorization.

45972618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7662108.

The product of its digits is 120960, while the sum is 42.

The square root of 45972618 is about 6780.3110548116. The cubic root of 45972618 is about 358.2336780505.

The spelling of 45972618 in words is "forty-five million, nine hundred seventy-two thousand, six hundred eighteen".