400432305522 has 16 divisors (see below), whose sum is σ = 800871024960. Its totient is φ = 133476366192.

The previous prime is 400432305463. The next prime is 400432305527. The reversal of 400432305522 is 225503234004.

It is a self number, because there is not a number n which added to its sum of digits gives 400432305522.

It is not an unprimeable number, because it can be changed into a prime (400432305527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025104 + ... + 1360772.

It is an arithmetic number, because the mean of its divisors is an integer number (50054439060).

Almost surely, 2^400432305522 is an apocalyptic number.

400432305522 is an abundant number, since it is smaller than the sum of its proper divisors (400438719438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400432305522 is a wasteful number, since it uses less digits than its factorization.

400432305522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534497.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 400432305522 its reverse (225503234004), we get a palindrome (625935539526).

The spelling of 400432305522 in words is "four hundred billion, four hundred thirty-two million, three hundred five thousand, five hundred twenty-two".