400243100145424 has 40 divisors (see below), whose sum is σ = 792500847592320. Its totient is φ = 195732456229248.

The previous prime is 400243100145389. The next prime is 400243100145431. The reversal of 400243100145424 is 424541001342004.

It is a self number, because there is not a number n which added to its sum of digits gives 400243100145424.

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, 177121794 + ... + 179367265.

It is an arithmetic number, because the mean of its divisors is an integer number (19812521189808).

Almost surely, 2^{400243100145424} is an apocalyptic number.

It is an amenable number.

400243100145424 is a deficient number, since it is larger than the sum of its proper divisors (392257747446896).

400243100145424 is a wasteful number, since it uses less digits than its factorization.

400243100145424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356490607 (or 356490601 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 400243100145424 its reverse (424541001342004), we get a palindrome (824784101487428).

The spelling of 400243100145424 in words is "four hundred trillion, two hundred forty-three billion, one hundred million, one hundred forty-five thousand, four hundred twenty-four".