45022320 has 120 divisors (see below), whose sum is σ = 172819296. Its totient is φ = 10289664.

The previous prime is 45022319. The next prime is 45022321. The reversal of 45022320 is 2322054.

It is an interprime number because it is at equal distance from previous prime (45022319) and next prime (45022321).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 45022293 and 45022302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45022321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574 + ... + 9506.

Almost surely, 2^45022320 is an apocalyptic number.

45022320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86409648).

45022320 is an abundant number, since it is smaller than the sum of its proper divisors (127796976).

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

45022320 is a wasteful number, since it uses less digits than its factorization.

45022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8959 (or 8950 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 45022320 is about 6709.8673608351. The cubic root of 45022320 is about 355.7481280315.

Adding to 45022320 its reverse (2322054), we get a palindrome (47344374).

The spelling of 45022320 in words is "forty-five million, twenty-two thousand, three hundred twenty".