404212143 has 16 divisors (see below), whose sum is σ = 562899456. Its totient is φ = 257521440.

The previous prime is 404212103. The next prime is 404212147. The reversal of 404212143 is 341212404.

It is not a de Polignac number, because 404212143 - 2⁹ = 404211631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404212147) 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, 102321 + ... + 106197.

It is an arithmetic number, because the mean of its divisors is an integer number (35181216).

Almost surely, 2^404212143 is an apocalyptic number.

404212143 is a deficient number, since it is larger than the sum of its proper divisors (158687313).

404212143 is a wasteful number, since it uses less digits than its factorization.

404212143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 404212143 is about 20105.0278040096. The cubic root of 404212143 is about 739.3835522382.

Adding to 404212143 its reverse (341212404), we get a palindrome (745424547).

The spelling of 404212143 in words is "four hundred four million, two hundred twelve thousand, one hundred forty-three".