400323124433 has 4 divisors (see below), whose sum is σ = 400656450468. Its totient is φ = 399989798400.

The previous prime is 400323124423. The next prime is 400323124519. The reversal of 400323124433 is 334421323004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19130485969 + 381192638464 = 138313^2 + 617408^2 .

It is a cyclic number.

It is not a de Polignac number, because 400323124433 - 2⁴ = 400323124417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400323124396 and 400323124405.

It is not an unprimeable number, because it can be changed into a prime (400323124423) 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, 166661216 + ... + 166663617.

It is an arithmetic number, because the mean of its divisors is an integer number (100164112617).

Almost surely, 2^400323124433 is an apocalyptic number.

It is an amenable number.

400323124433 is a deficient number, since it is larger than the sum of its proper divisors (333326035).

400323124433 is a wasteful number, since it uses less digits than its factorization.

400323124433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333326034.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 400323124433 its reverse (334421323004), we get a palindrome (734744447437).

The spelling of 400323124433 in words is "four hundred billion, three hundred twenty-three million, one hundred twenty-four thousand, four hundred thirty-three".