432081491 has 8 divisors (see below), whose sum is σ = 434678400. Its totient is φ = 429491392.

The previous prime is 432081467. The next prime is 432081547. The reversal of 432081491 is 194180234.

It is a happy number.

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 432081491 - 2¹⁴ = 432065107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432081421) 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, 178910 + ... + 181308.

It is an arithmetic number, because the mean of its divisors is an integer number (54334800).

Almost surely, 2^432081491 is an apocalyptic number.

432081491 is a deficient number, since it is larger than the sum of its proper divisors (2596909).

432081491 is a wasteful number, since it uses less digits than its factorization.

432081491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 432081491 is about 20786.5699671687. The cubic root of 432081491 is about 756.0001603865. Note that the first 3 decimals are identical.

The spelling of 432081491 in words is "four hundred thirty-two million, eighty-one thousand, four hundred ninety-one".