400322361634 has 16 divisors (see below), whose sum is σ = 646689738240. Its totient is φ = 184759837200.

The previous prime is 400322361631. The next prime is 400322361661. The reversal of 400322361634 is 436163223004.

It is a self number, because there is not a number n which added to its sum of digits gives 400322361634.

It is not an unprimeable number, because it can be changed into a prime (400322361631) 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, 1130047 + ... + 1441405.

It is an arithmetic number, because the mean of its divisors is an integer number (40418108640).

Almost surely, 2^400322361634 is an apocalyptic number.

400322361634 is a deficient number, since it is larger than the sum of its proper divisors (246367376606).

400322361634 is a wasteful number, since it uses less digits than its factorization.

400322361634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360825.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 400322361634 its reverse (436163223004), we get a palindrome (836485584638).

The spelling of 400322361634 in words is "four hundred billion, three hundred twenty-two million, three hundred sixty-one thousand, six hundred thirty-four".