20230530 has 32 divisors (see below), whose sum is σ = 48679488. Its totient is φ = 5380800.

The previous prime is 20230519. The next prime is 20230537. The reversal of 20230530 is 3503202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20230537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16540 + ... + 17720.

It is an arithmetic number, because the mean of its divisors is an integer number (1521234).

Almost surely, 2^20230530 is an apocalyptic number.

20230530 is an abundant number, since it is smaller than the sum of its proper divisors (28448958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20230530 is a wasteful number, since it uses less digits than its factorization.

20230530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 20230530 is about 4497.8361464153. The cubic root of 20230530 is about 272.4807045227.

Adding to 20230530 its reverse (3503202), we get a palindrome (23733732).

The spelling of 20230530 in words is "twenty million, two hundred thirty thousand, five hundred thirty".