400424200023 has 16 divisors (see below), whose sum is σ = 547424188416. Its totient is φ = 260198823360.

The previous prime is 400424200013. The next prime is 400424200031. The reversal of 400424200023 is 320002424004.

It is not a de Polignac number, because 400424200023 - 2¹⁴ = 400424183639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400424200003) 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, 1363761 + ... + 1631162.

It is an arithmetic number, because the mean of its divisors is an integer number (34214011776).

Almost surely, 2^400424200023 is an apocalyptic number.

400424200023 is a deficient number, since it is larger than the sum of its proper divisors (146999988393).

400424200023 is a wasteful number, since it uses less digits than its factorization.

400424200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996054.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 400424200023 its reverse (320002424004), we get a palindrome (720426624027).

The spelling of 400424200023 in words is "four hundred billion, four hundred twenty-four million, two hundred thousand, twenty-three".