20232658 has 4 divisors (see below), whose sum is σ = 30348990. Its totient is φ = 10116328.

The previous prime is 20232647. The next prime is 20232659. The reversal of 20232658 is 85623202.

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

It can be written as a sum of positive squares in only one way, i.e., 11512449 + 8720209 = 3393^2 + 2953^2 .

It is not an unprimeable number, because it can be changed into a prime (20232659) by changing a digit.

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, 5058163 + ... + 5058166.

Almost surely, 2^20232658 is an apocalyptic number.

20232658 is a deficient number, since it is larger than the sum of its proper divisors (10116332).

20232658 is a wasteful number, since it uses less digits than its factorization.

20232658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10116331.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20232658 is about 4498.0726983898. The cubic root of 20232658 is about 272.4902580475.

The spelling of 20232658 in words is "twenty million, two hundred thirty-two thousand, six hundred fifty-eight".