232220020 has 12 divisors (see below), whose sum is σ = 487662084. Its totient is φ = 92888000.

The previous prime is 232220011. The next prime is 232220041. The reversal of 232220020 is 20022232.

It can be written as a sum of positive squares in 2 ways, for example, as 44036496 + 188183524 = 6636^2 + 13718^2 .

It is a super-2 number, since 2×232220020² = 107852275377600800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5805481 + ... + 5805520.

It is an arithmetic number, because the mean of its divisors is an integer number (40638507).

Almost surely, 2^232220020 is an apocalyptic number.

232220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232220020 is an abundant number, since it is smaller than the sum of its proper divisors (255442064).

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

232220020 is a wasteful number, since it uses less digits than its factorization.

232220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11611010 (or 11611008 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 232220020 is about 15238.7670104901. The cubic root of 232220020 is about 614.6575483475.

Adding to 232220020 its reverse (20022232), we get a palindrome (252242252).

The spelling of 232220020 in words is "two hundred thirty-two million, two hundred twenty thousand, twenty".