22490010 has 48 divisors (see below), whose sum is σ = 58747104. Its totient is φ = 5969376.

The previous prime is 22490003. The next prime is 22490063. The reversal of 22490010 is 1009422.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25029 + ... + 25911.

It is an arithmetic number, because the mean of its divisors is an integer number (1223898).

Almost surely, 2^22490010 is an apocalyptic number.

22490010 is an abundant number, since it is smaller than the sum of its proper divisors (36257094).

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

22490010 is a wasteful number, since it uses less digits than its factorization.

22490010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 22490010 is about 4742.3633348785. The cubic root of 22490010 is about 282.2690204794.

Adding to 22490010 its reverse (1009422), we get a palindrome (23499432).

The spelling of 22490010 in words is "twenty-two million, four hundred ninety thousand, ten".