45991022 has 32 divisors (see below), whose sum is σ = 87208704. Its totient is φ = 17668800.

The previous prime is 45991021. The next prime is 45991063. The reversal of 45991022 is 22019954.

It is a self number, because there is not a number n which added to its sum of digits gives 45991022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45991021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9197 + ... + 13287.

It is an arithmetic number, because the mean of its divisors is an integer number (2725272).

Almost surely, 2^45991022 is an apocalyptic number.

45991022 is a deficient number, since it is larger than the sum of its proper divisors (41217682).

45991022 is a wasteful number, since it uses less digits than its factorization.

45991022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 45991022 is about 6781.6680838861. The cubic root of 45991022 is about 358.2814750024.

The spelling of 45991022 in words is "forty-five million, nine hundred ninety-one thousand, twenty-two".