432040681 has 2 divisors, whose sum is σ = 432040682. Its totient is φ = 432040680.

The previous prime is 432040643. The next prime is 432040691. The reversal of 432040681 is 186040234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336392281 + 95648400 = 18341^2 + 9780^2 .

It is a cyclic number.

It is not a de Polignac number, because 432040681 - 2¹⁷ = 431909609 is a prime.

It is a super-2 number, since 2×432040681² = 373318300077887522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (432040691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216020340 + 216020341.

It is an arithmetic number, because the mean of its divisors is an integer number (216020341).

Almost surely, 2^432040681 is an apocalyptic number.

It is an amenable number.

432040681 is a deficient number, since it is larger than the sum of its proper divisors (1).

432040681 is an equidigital number, since it uses as much as digits as its factorization.

432040681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 432040681 is about 20785.5883005509. The cubic root of 432040681 is about 755.9763582885.

The spelling of 432040681 in words is "four hundred thirty-two million, forty thousand, six hundred eighty-one".