431016401 has 4 divisors (see below), whose sum is σ = 431227392. Its totient is φ = 430805412.

The previous prime is 431016379. The next prime is 431016431. The reversal of 431016401 is 104610134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431016401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (431016431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102401 + ... + 106526.

It is an arithmetic number, because the mean of its divisors is an integer number (107806848).

Almost surely, 2^431016401 is an apocalyptic number.

It is an amenable number.

431016401 is a deficient number, since it is larger than the sum of its proper divisors (210991).

431016401 is a wasteful number, since it uses less digits than its factorization.

431016401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210990.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 431016401 is about 20760.9344924548. The cubic root of 431016401 is about 755.3784638211.

Adding to 431016401 its reverse (104610134), we get a palindrome (535626535).

The spelling of 431016401 in words is "four hundred thirty-one million, sixteen thousand, four hundred one".