432042781 has 8 divisors (see below), whose sum is σ = 443478240. Its totient is φ = 420744528.

The previous prime is 432042769. The next prime is 432042791. The reversal of 432042781 is 187240234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 432042781 - 2⁵ = 432042749 is a prime.

It is a super-2 number, since 2×432042781² = 373321929228427922, 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 (432042791) 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, 27906 + ... + 40531.

It is an arithmetic number, because the mean of its divisors is an integer number (55434780).

Almost surely, 2^432042781 is an apocalyptic number.

It is an amenable number.

432042781 is a deficient number, since it is larger than the sum of its proper divisors (11435459).

432042781 is a wasteful number, since it uses less digits than its factorization.

432042781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68603.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 432042781 is about 20785.6388162597. The cubic root of 432042781 is about 755.9775831329.

The spelling of 432042781 in words is "four hundred thirty-two million, forty-two thousand, seven hundred eighty-one".