22649460 has 24 divisors (see below), whose sum is σ = 63418656. Its totient is φ = 6039840.

The previous prime is 22649413. The next prime is 22649477. The reversal of 22649460 is 6494622.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188686 + ... + 188805.

It is an arithmetic number, because the mean of its divisors is an integer number (2642444).

Almost surely, 2^22649460 is an apocalyptic number.

22649460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22649460 is an abundant number, since it is smaller than the sum of its proper divisors (40769196).

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

22649460 is a wasteful number, since it uses less digits than its factorization.

22649460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377503 (or 377501 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 22649460 is about 4759.1448811735. The cubic root of 22649460 is about 282.9345285080.

It can be divided in two parts, 2 and 2649460, that added together give a palindrome (2649462).

The spelling of 22649460 in words is "twenty-two million, six hundred forty-nine thousand, four hundred sixty".