401230431 has 24 divisors (see below), whose sum is σ = 663728000. Its totient is φ = 228797136.

The previous prime is 401230421. The next prime is 401230451. The reversal of 401230431 is 134032104.

401230431 is a `hidden beast` number, since 4 + 0 + 1 + 230 + 431 = 666.

It is not a de Polignac number, because 401230431 - 2⁹ = 401229919 is a prime.

It is a super-2 number, since 2×401230431² = 321971717520891522, 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 (401230421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25056 + ... + 37818.

Almost surely, 2^401230431 is an apocalyptic number.

401230431 is a deficient number, since it is larger than the sum of its proper divisors (262497569).

401230431 is a wasteful number, since it uses less digits than its factorization.

401230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13275 (or 13272 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 401230431 is about 20030.7371556815. The cubic root of 401230431 is about 737.5610174930.

Adding to 401230431 its reverse (134032104), we get a palindrome (535262535).

It can be divided in two parts, 4012 and 30431, that added together give a palindrome (34443).

The spelling of 401230431 in words is "four hundred one million, two hundred thirty thousand, four hundred thirty-one".