22448994 has 32 divisors (see below), whose sum is σ = 47554560. Its totient is φ = 7045200.

The previous prime is 22448981. The next prime is 22449041. The reversal of 22448994 is 49984422.

It is a super-2 number, since 2×22448994² = 1007914663224072, which contains 22 as substring.

It is a Curzon 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, 21259 + ... + 22289.

It is an arithmetic number, because the mean of its divisors is an integer number (1486080).

Almost surely, 2^22448994 is an apocalyptic number.

22448994 is an abundant number, since it is smaller than the sum of its proper divisors (25105566).

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

22448994 is a wasteful number, since it uses less digits than its factorization.

22448994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its digits is 165888, while the sum is 42.

The square root of 22448994 is about 4738.0369352718. The cubic root of 22448994 is about 282.0973206678.

The spelling of 22448994 in words is "twenty-two million, four hundred forty-eight thousand, nine hundred ninety-four".