400450252431 has 8 divisors (see below), whose sum is σ = 534743890560. Its totient is φ = 266561724632.

The previous prime is 400450252421. The next prime is 400450252483. The reversal of 400450252431 is 134252054004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400450252431 - 2⁹ = 400450251919 is a prime.

It is a super-2 number, since 2×400450252431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400450252421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101275275 + ... + 101279228.

It is an arithmetic number, because the mean of its divisors is an integer number (66842986320).

Almost surely, 2^400450252431 is an apocalyptic number.

400450252431 is a deficient number, since it is larger than the sum of its proper divisors (134293638129).

400450252431 is a wasteful number, since it uses less digits than its factorization.

400450252431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202555165.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 400450252431 in words is "four hundred billion, four hundred fifty million, two hundred fifty-two thousand, four hundred thirty-one".