400053323 has 2 divisors, whose sum is σ = 400053324. Its totient is φ = 400053322.

The previous prime is 400053319. The next prime is 400053337. The reversal of 400053323 is 323350004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400053323 - 2² = 400053319 is a prime.

It is a super-2 number, since 2×400053323² = 320085322486684658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 400053295 and 400053304.

It is not a weakly prime, because it can be changed into another prime (400053383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200026661 + 200026662.

It is an arithmetic number, because the mean of its divisors is an integer number (200026662).

Almost surely, 2^400053323 is an apocalyptic number.

400053323 is a deficient number, since it is larger than the sum of its proper divisors (1).

400053323 is an equidigital number, since it uses as much as digits as its factorization.

400053323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 400053323 is about 20001.3330305757. Note that the first 3 decimals coincide. The cubic root of 400053323 is about 736.8390388753.

The spelling of 400053323 in words is "four hundred million, fifty-three thousand, three hundred twenty-three".