22446460 has 48 divisors (see below), whose sum is σ = 50458464. Its totient is φ = 8357888.

The previous prime is 22446451. The next prime is 22446497. The reversal of 22446460 is 6464422.

It is a congruent number.

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, 36072 + ... + 36688.

It is an arithmetic number, because the mean of its divisors is an integer number (1051218).

Almost surely, 2^22446460 is an apocalyptic number.

22446460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22446460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25229232).

22446460 is an abundant number, since it is smaller than the sum of its proper divisors (28012004).

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

22446460 is a wasteful number, since it uses less digits than its factorization.

22446460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 22446460 is about 4737.7695173995. The cubic root of 22446460 is about 282.0867060643.

The spelling of 22446460 in words is "twenty-two million, four hundred forty-six thousand, four hundred sixty".