22503490 has 8 divisors (see below), whose sum is σ = 40506300. Its totient is φ = 9001392.

The previous prime is 22503487. The next prime is 22503493. The reversal of 22503490 is 9430522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22503487) and next prime (22503493).

It can be written as a sum of positive squares in 2 ways, for example, as 22458121 + 45369 = 4739^2 + 213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22503493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125165 + ... + 1125184.

Almost surely, 2^22503490 is an apocalyptic number.

22503490 is a deficient number, since it is larger than the sum of its proper divisors (18002810).

22503490 is a wasteful number, since it uses less digits than its factorization.

22503490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250356.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22503490 is about 4743.7843542893. The cubic root of 22503490 is about 282.3254044241.

The spelling of 22503490 in words is "twenty-two million, five hundred three thousand, four hundred ninety".