22420298 has 8 divisors (see below), whose sum is σ = 34539492. Its totient is φ = 10907136.

The previous prime is 22420291. The next prime is 22420313. The reversal of 22420298 is 89202422.

It can be written as a sum of positive squares in 2 ways, for example, as 22306729 + 113569 = 4723^2 + 337^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22420298.

It is not an unprimeable number, because it can be changed into a prime (22420291) 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, 151415 + ... + 151562.

Almost surely, 2^22420298 is an apocalyptic number.

22420298 is a deficient number, since it is larger than the sum of its proper divisors (12119194).

22420298 is a wasteful number, since it uses less digits than its factorization.

22420298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303016.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22420298 is about 4735.0077085471. The cubic root of 22420298 is about 281.9770700468.

The spelling of 22420298 in words is "twenty-two million, four hundred twenty thousand, two hundred ninety-eight".