400112423 has 4 divisors (see below), whose sum is σ = 407661768. Its totient is φ = 392563080.

The previous prime is 400112411. The next prime is 400112429. The reversal of 400112423 is 324211004.

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

It is a cyclic number.

It is not a de Polignac number, because 400112423 - 2⁴ = 400112407 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 (400112429) 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, 3774593 + ... + 3774698.

It is an arithmetic number, because the mean of its divisors is an integer number (101915442).

Almost surely, 2^400112423 is an apocalyptic number.

400112423 is a deficient number, since it is larger than the sum of its proper divisors (7549345).

400112423 is an equidigital number, since it uses as much as digits as its factorization.

400112423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7549344.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 400112423 is about 20002.8103775445. The cubic root of 400112423 is about 736.8753215743.

Adding to 400112423 its reverse (324211004), we get a palindrome (724323427).

The spelling of 400112423 in words is "four hundred million, one hundred twelve thousand, four hundred twenty-three".