404023143 has 16 divisors (see below), whose sum is σ = 558835200. Its totient is φ = 259446720.

The previous prime is 404023111. The next prime is 404023153. The reversal of 404023143 is 341320404.

It is not a de Polignac number, because 404023143 - 2⁵ = 404023111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404023153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11073 + ... + 30506.

It is an arithmetic number, because the mean of its divisors is an integer number (34927200).

Almost surely, 2^404023143 is an apocalyptic number.

404023143 is a deficient number, since it is larger than the sum of its proper divisors (154812057).

404023143 is a wasteful number, since it uses less digits than its factorization.

404023143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41702.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404023143 is about 20100.3269376396. The cubic root of 404023143 is about 739.2682948750.

Adding to 404023143 its reverse (341320404), we get a palindrome (745343547).

The spelling of 404023143 in words is "four hundred four million, twenty-three thousand, one hundred forty-three".