400024323 has 12 divisors (see below), whose sum is σ = 581692800. Its totient is φ = 264892176.

The previous prime is 400024301. The next prime is 400024327. The reversal of 400024323 is 323420004.

400024323 is a `hidden beast` number, since 400 + 0 + 243 + 23 = 666.

It is not a de Polignac number, because 400024323 - 2⁸ = 400024067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400024296 and 400024305.

It is not an unprimeable number, because it can be changed into a prime (400024327) 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 in 11 ways as a sum of consecutive naturals, for example, 147811 + ... + 150492.

It is an arithmetic number, because the mean of its divisors is an integer number (48474400).

Almost surely, 2^400024323 is an apocalyptic number.

400024323 is a deficient number, since it is larger than the sum of its proper divisors (181668477).

400024323 is a wasteful number, since it uses less digits than its factorization.

400024323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298458 (or 298455 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 400024323 is about 20000.6080657564. The cubic root of 400024323 is about 736.8212338751.

Adding to 400024323 its reverse (323420004), we get a palindrome (723444327).

The spelling of 400024323 in words is "four hundred million, twenty-four thousand, three hundred twenty-three".