400042224460 has 24 divisors (see below), whose sum is σ = 840121616880. Its totient is φ = 160010614464.

The previous prime is 400042224457. The next prime is 400042224581. The reversal of 400042224460 is 64422240004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148726 + ... + 906754.

It is an arithmetic number, because the mean of its divisors is an integer number (35005067370).

Almost surely, 2^400042224460 is an apocalyptic number.

It is an amenable number.

400042224460 is an abundant number, since it is smaller than the sum of its proper divisors (440079392420).

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

400042224460 is a wasteful number, since it uses less digits than its factorization.

400042224460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784425 (or 784423 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 400042224460 its reverse (64422240004), we get a palindrome (464464464464).

The spelling of 400042224460 in words is "four hundred billion, forty-two million, two hundred twenty-four thousand, four hundred sixty".