20598224 has 20 divisors (see below), whose sum is σ = 40204644. Its totient is φ = 10222848.

The previous prime is 20598211. The next prime is 20598239. The reversal of 20598224 is 42289502.

It can be written as a sum of positive squares in 2 ways, for example, as 4276624 + 16321600 = 2068^2 + 4040^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507 + ... + 6890.

Almost surely, 2^20598224 is an apocalyptic number.

It is an amenable number.

20598224 is a deficient number, since it is larger than the sum of its proper divisors (19606420).

20598224 is a wasteful number, since it uses less digits than its factorization.

20598224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9542 (or 9536 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 20598224 is about 4538.5266331707. The cubic root of 20598224 is about 274.1216005272.

The spelling of 20598224 in words is "twenty million, five hundred ninety-eight thousand, two hundred twenty-four".