404401120431 has 32 divisors (see below), whose sum is σ = 672357428736. Its totient is φ = 210045312000.

The previous prime is 404401120429. The next prime is 404401120441. The reversal of 404401120431 is 134021104404.

It is not a de Polignac number, because 404401120431 - 2¹ = 404401120429 is a prime.

It is a super-2 number, since 2×404401120431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404401120411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1362051 + ... + 1632171.

It is an arithmetic number, because the mean of its divisors is an integer number (21011169648).

Almost surely, 2^404401120431 is an apocalyptic number.

404401120431 is a deficient number, since it is larger than the sum of its proper divisors (267956308305).

404401120431 is a wasteful number, since it uses less digits than its factorization.

404401120431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276623.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 404401120431 its reverse (134021104404), we get a palindrome (538422224835).

The spelling of 404401120431 in words is "four hundred four billion, four hundred one million, one hundred twenty thousand, four hundred thirty-one".