400324433 has 4 divisors (see below), whose sum is σ = 421394160. Its totient is φ = 379254708.

The previous prime is 400324399. The next prime is 400324469. The reversal of 400324433 is 334423004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400324433 - 2²² = 396130129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400324399 and 400324408.

It is not an unprimeable number, because it can be changed into a prime (400324493) 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, 10534835 + ... + 10534872.

It is an arithmetic number, because the mean of its divisors is an integer number (105348540).

Almost surely, 2^400324433 is an apocalyptic number.

It is an amenable number.

400324433 is a deficient number, since it is larger than the sum of its proper divisors (21069727).

400324433 is a wasteful number, since it uses less digits than its factorization.

400324433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21069726.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 400324433 is about 20008.1091810296. The cubic root of 400324433 is about 737.0054494607.

Adding to 400324433 its reverse (334423004), we get a palindrome (734747437).

The spelling of 400324433 in words is "four hundred million, three hundred twenty-four thousand, four hundred thirty-three".