400242343024232 has 8 divisors (see below), whose sum is σ = 750454393170450. Its totient is φ = 200121171512112.

The previous prime is 400242343024231. The next prime is 400242343024241. The reversal of 400242343024232 is 232420343242004.

It can be written as a sum of positive squares in only one way, i.e., 397463474028196 + 2778868996036 = 19936486^2 + 1666994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 400242343024192 and 400242343024201.

It is not an unprimeable number, because it can be changed into a prime (400242343024231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25015146439007 + ... + 25015146439022.

Almost surely, 2^{400242343024232} is an apocalyptic number.

It is an amenable number.

400242343024232 is a deficient number, since it is larger than the sum of its proper divisors (350212050146218).

400242343024232 is a wasteful number, since it uses less digits than its factorization.

400242343024232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50030292878035 (or 50030292878031 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 35.

Adding to 400242343024232 its reverse (232420343242004), we get a palindrome (632662686266236).

The spelling of 400242343024232 in words is "four hundred trillion, two hundred forty-two billion, three hundred forty-three million, twenty-four thousand, two hundred thirty-two".