45422000 has 80 divisors (see below), whose sum is σ = 118346592. Its totient is φ = 16761600.

The previous prime is 45421991. The next prime is 45422009. The reversal of 45422000 is 22454.

It is an interprime number because it is at equal distance from previous prime (45421991) and next prime (45422009).

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 45422000.

It is not an unprimeable number, because it can be changed into a prime (45422009) 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, 25127 + ... + 26873.

Almost surely, 2^45422000 is an apocalyptic number.

45422000 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 45422000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59173296).

45422000 is an abundant number, since it is smaller than the sum of its proper divisors (72924592).

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

45422000 is a wasteful number, since it uses less digits than its factorization.

45422000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 45422000 is about 6739.5845569293. The cubic root of 45422000 is about 356.7977313563.

Adding to 45422000 its reverse (22454), we get a palindrome (45444454).

The spelling of 45422000 in words is "forty-five million, four hundred twenty-two thousand".