22146530 has 24 divisors (see below), whose sum is σ = 46373148. Its totient is φ = 7592928.

The previous prime is 22146499. The next prime is 22146547. The reversal of 22146530 is 3564122.

22146530 = T₃₇₄ + T₃₇₅ + ... + T₅₆₉.

It can be written as a sum of positive squares in 2 ways, for example, as 21279769 + 866761 = 4613^2 + 931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22146496 and 22146505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22109 + ... + 23088.

Almost surely, 2^22146530 is an apocalyptic number.

22146530 is an abundant number, since it is smaller than the sum of its proper divisors (24226618).

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

22146530 is a wasteful number, since it uses less digits than its factorization.

22146530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45218 (or 45211 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22146530 is about 4706.0099872397. The cubic root of 22146530 is about 280.8246521945.

The spelling of 22146530 in words is "twenty-two million, one hundred forty-six thousand, five hundred thirty".