22642460 has 12 divisors (see below), whose sum is σ = 47549208. Its totient is φ = 9056976.

The previous prime is 22642457. The next prime is 22642463. The reversal of 22642460 is 6424622.

It is an interprime number because it is at equal distance from previous prime (22642457) and next prime (22642463).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22642463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566042 + ... + 566081.

It is an arithmetic number, because the mean of its divisors is an integer number (3962434).

Almost surely, 2^22642460 is an apocalyptic number.

22642460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22642460 is an abundant number, since it is smaller than the sum of its proper divisors (24906748).

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

22642460 is a wasteful number, since it uses less digits than its factorization.

22642460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132132 (or 1132130 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 22642460 is about 4758.4093981077. The cubic root of 22642460 is about 282.9053777649.

It can be divided in two parts, 2 and 2642460, that added together give a palindrome (2642462).

The spelling of 22642460 in words is "twenty-two million, six hundred forty-two thousand, four hundred sixty".