22098490 has 8 divisors (see below), whose sum is σ = 39777300. Its totient is φ = 8839392.

The previous prime is 22098481. The next prime is 22098499. The reversal of 22098490 is 9489022.

It is an interprime number because it is at equal distance from previous prime (22098481) and next prime (22098499).

It can be written as a sum of positive squares in 2 ways, for example, as 20457529 + 1640961 = 4523^2 + 1281^2 .

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 (22098499) 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 3 ways as a sum of consecutive naturals, for example, 1104915 + ... + 1104934.

Almost surely, 2^22098490 is an apocalyptic number.

22098490 is a deficient number, since it is larger than the sum of its proper divisors (17678810).

22098490 is a wasteful number, since it uses less digits than its factorization.

22098490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209856.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 22098490 is about 4700.9031047236. The cubic root of 22098490 is about 280.6214513203.

The spelling of 22098490 in words is "twenty-two million, ninety-eight thousand, four hundred ninety".