400913423 has 2 divisors, whose sum is σ = 400913424. Its totient is φ = 400913422.

The previous prime is 400913353. The next prime is 400913441. The reversal of 400913423 is 324319004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400913423 - 2¹⁴ = 400897039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400913392 and 400913401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400913453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200456711 + 200456712.

It is an arithmetic number, because the mean of its divisors is an integer number (200456712).

Almost surely, 2^400913423 is an apocalyptic number.

400913423 is a deficient number, since it is larger than the sum of its proper divisors (1).

400913423 is an equidigital number, since it uses as much as digits as its factorization.

400913423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 400913423 is about 20022.8225532765. The cubic root of 400913423 is about 737.3667198777.

The spelling of 400913423 in words is "four hundred million, nine hundred thirteen thousand, four hundred twenty-three".