20232280 has 32 divisors (see below), whose sum is σ = 46299600. Its totient is φ = 7954816.

The previous prime is 20232271. The next prime is 20232287. The reversal of 20232280 is 8223202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1927 + ... + 6646.

Almost surely, 2^20232280 is an apocalyptic number.

20232280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20232280 is an abundant number, since it is smaller than the sum of its proper divisors (26067320).

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

20232280 is a wasteful number, since it uses less digits than its factorization.

20232280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643 (or 8639 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20232280 is about 4498.0306801977. The cubic root of 20232280 is about 272.4885610887.

Adding to 20232280 its reverse (8223202), we get a palindrome (28455482).

The spelling of 20232280 in words is "twenty million, two hundred thirty-two thousand, two hundred eighty".