22620398 has 4 divisors (see below), whose sum is σ = 33930600. Its totient is φ = 11310198.

The previous prime is 22620383. The next prime is 22620401. The reversal of 22620398 is 89302622.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655098 + ... + 5655101.

It is an arithmetic number, because the mean of its divisors is an integer number (8482650).

Almost surely, 2^22620398 is an apocalyptic number.

22620398 is a deficient number, since it is larger than the sum of its proper divisors (11310202).

22620398 is a wasteful number, since it uses less digits than its factorization.

22620398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310201.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 22620398 is about 4756.0906215084. The cubic root of 22620398 is about 282.8134636252.

The spelling of 22620398 in words is "twenty-two million, six hundred twenty thousand, three hundred ninety-eight".