400153423 has 2 divisors, whose sum is σ = 400153424. Its totient is φ = 400153422.

The previous prime is 400153417. The next prime is 400153447. The reversal of 400153423 is 324351004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400153423 - 2⁹ = 400152911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400153394 and 400153403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400156423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200076711 + 200076712.

It is an arithmetic number, because the mean of its divisors is an integer number (200076712).

Almost surely, 2^400153423 is an apocalyptic number.

400153423 is a deficient number, since it is larger than the sum of its proper divisors (1).

400153423 is an equidigital number, since it uses as much as digits as its factorization.

400153423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 400153423 is about 20003.8352072796. The cubic root of 400153423 is about 736.9004902141.

The spelling of 400153423 in words is "four hundred million, one hundred fifty-three thousand, four hundred twenty-three".