401334231 has 4 divisors (see below), whose sum is σ = 535112312. Its totient is φ = 267556152.

The previous prime is 401334229. The next prime is 401334251. The reversal of 401334231 is 132433104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 401334231 - 2¹ = 401334229 is a prime.

It is a super-2 number, since 2×401334231² = 322138329944722722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401334198 and 401334207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401334211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66889036 + ... + 66889041.

It is an arithmetic number, because the mean of its divisors is an integer number (133778078).

Almost surely, 2^401334231 is an apocalyptic number.

401334231 is a deficient number, since it is larger than the sum of its proper divisors (133778081).

401334231 is a wasteful number, since it uses less digits than its factorization.

401334231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133778080.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 401334231 is about 20033.3280061002. The cubic root of 401334231 is about 737.6246153880.

Adding to 401334231 its reverse (132433104), we get a palindrome (533767335).

The spelling of 401334231 in words is "four hundred one million, three hundred thirty-four thousand, two hundred thirty-one".