400341004023 has 4 divisors (see below), whose sum is σ = 533788005368. Its totient is φ = 266894002680.

The previous prime is 400341003989. The next prime is 400341004043. The reversal of 400341004023 is 320400143004.

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

It is not a de Polignac number, because 400341004023 - 2¹⁴ = 400340987639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400341004043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66723500668 + ... + 66723500673.

It is an arithmetic number, because the mean of its divisors is an integer number (133447001342).

Almost surely, 2^400341004023 is an apocalyptic number.

400341004023 is a deficient number, since it is larger than the sum of its proper divisors (133447001345).

400341004023 is a wasteful number, since it uses less digits than its factorization.

400341004023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133447001344.

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

Adding to 400341004023 its reverse (320400143004), we get a palindrome (720741147027).

The spelling of 400341004023 in words is "four hundred billion, three hundred forty-one million, four thousand, twenty-three".