432121020 has 24 divisors (see below), whose sum is σ = 1209939024. Its totient is φ = 115232256.

The previous prime is 432120979. The next prime is 432121021. The reversal of 432121020 is 20121234.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432121021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3600949 + ... + 3601068.

It is an arithmetic number, because the mean of its divisors is an integer number (50414126).

Almost surely, 2^432121020 is an apocalyptic number.

It is an amenable number.

432121020 is an abundant number, since it is smaller than the sum of its proper divisors (777818004).

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

432121020 is a wasteful number, since it uses less digits than its factorization.

432121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7202029 (or 7202027 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 432121020 is about 20787.5207756962. The cubic root of 432121020 is about 756.0232139228.

Adding to 432121020 its reverse (20121234), we get a palindrome (452242254).

The spelling of 432121020 in words is "four hundred thirty-two million, one hundred twenty-one thousand, twenty".