400454522431 has 8 divisors (see below), whose sum is σ = 401288379264. Its totient is φ = 399621528600.

The previous prime is 400454522417. The next prime is 400454522467. The reversal of 400454522431 is 134225454004.

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 400454522431 - 2⁵ = 400454522399 is a prime.

It is a super-2 number, since 2×400454522431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400454522401) 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, 717456 + ... + 1147018.

It is an arithmetic number, because the mean of its divisors is an integer number (50161047408).

Almost surely, 2^400454522431 is an apocalyptic number.

400454522431 is a deficient number, since it is larger than the sum of its proper divisors (833856833).

400454522431 is a wasteful number, since it uses less digits than its factorization.

400454522431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431501.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 400454522431 its reverse (134225454004), we get a palindrome (534679976435).

The spelling of 400454522431 in words is "four hundred billion, four hundred fifty-four million, five hundred twenty-two thousand, four hundred thirty-one".