22461530 has 32 divisors (see below), whose sum is σ = 49762944. Its totient is φ = 7108416.

The previous prime is 22461529. The next prime is 22461541. The reversal of 22461530 is 3516422.

It is a junction number, because it is equal to n+sod(n) for n = 22461496 and 22461505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11432 + ... + 13251.

It is an arithmetic number, because the mean of its divisors is an integer number (1555092).

Almost surely, 2^22461530 is an apocalyptic number.

22461530 is an abundant number, since it is smaller than the sum of its proper divisors (27301414).

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

22461530 is a wasteful number, since it uses less digits than its factorization.

22461530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24710.

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

The square root of 22461530 is about 4739.3596613889. The cubic root of 22461530 is about 282.1498206291.

Adding to 22461530 its reverse (3516422), we get a palindrome (25977952).

The spelling of 22461530 in words is "twenty-two million, four hundred sixty-one thousand, five hundred thirty".