432513781 has 16 divisors (see below), whose sum is σ = 517849344. Its totient is φ = 353193984.

The previous prime is 432513751. The next prime is 432513803. The reversal of 432513781 is 187315234.

It is a cyclic number.

It is not a de Polignac number, because 432513781 - 2¹⁵ = 432481013 is a prime.

It is a super-2 number, since 2×432513781² = 374136341509831922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432513721) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36151 + ... + 46603.

It is an arithmetic number, because the mean of its divisors is an integer number (32365584).

Almost surely, 2^432513781 is an apocalyptic number.

It is an amenable number.

432513781 is a deficient number, since it is larger than the sum of its proper divisors (85335563).

432513781 is a wasteful number, since it uses less digits than its factorization.

432513781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10740.

The product of its digits is 20160, while the sum is 34.

The square root of 432513781 is about 20796.9656680969. The cubic root of 432513781 is about 756.2521980129.

The spelling of 432513781 in words is "four hundred thirty-two million, five hundred thirteen thousand, seven hundred eighty-one".