22446490 has 16 divisors (see below), whose sum is σ = 44076960. Its totient is φ = 8162320.

The previous prime is 22446451. The next prime is 22446497. The reversal of 22446490 is 9464422.

It is not an unprimeable number, because it can be changed into a prime (22446497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101920 + ... + 102139.

It is an arithmetic number, because the mean of its divisors is an integer number (2754810).

Almost surely, 2^22446490 is an apocalyptic number.

22446490 is a deficient number, since it is larger than the sum of its proper divisors (21630470).

22446490 is a wasteful number, since it uses less digits than its factorization.

22446490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204077.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 22446490 is about 4737.7726834452. The cubic root of 22446490 is about 282.0868317351.

The spelling of 22446490 in words is "twenty-two million, four hundred forty-six thousand, four hundred ninety".