45422130 has 144 divisors (see below), whose sum is σ = 129441024. Its totient is φ = 10183680.

The previous prime is 45422101. The next prime is 45422173. The reversal of 45422130 is 3122454.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45422097 and 45422106.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1465215 + ... + 1465245.

It is an arithmetic number, because the mean of its divisors is an integer number (898896).

Almost surely, 2^45422130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45422130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64720512).

45422130 is an abundant number, since it is smaller than the sum of its proper divisors (84018894).

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

45422130 is a wasteful number, since it uses less digits than its factorization.

45422130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 45422130 is about 6739.5942014338. The cubic root of 45422130 is about 356.7980717468.

Adding to 45422130 its reverse (3122454), we get a palindrome (48544584).

The spelling of 45422130 in words is "forty-five million, four hundred twenty-two thousand, one hundred thirty".