400024134203234 has 4 divisors (see below), whose sum is σ = 600036201304854. Its totient is φ = 200012067101616.

The previous prime is 400024134203231. The next prime is 400024134203251. The reversal of 400024134203234 is 432302431420004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 343424016080209 + 56600118123025 = 18531703^2 + 7523305^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 400024134203234.

It is not an unprimeable number, because it can be changed into a prime (400024134203231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100006033550807 + ... + 100006033550810.

Almost surely, 2^{400024134203234} is an apocalyptic number.

400024134203234 is a deficient number, since it is larger than the sum of its proper divisors (200012067101620).

400024134203234 is a wasteful number, since it uses less digits than its factorization.

400024134203234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200012067101619.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 400024134203234 its reverse (432302431420004), we get a palindrome (832326565623238).

The spelling of 400024134203234 in words is "four hundred trillion, twenty-four billion, one hundred thirty-four million, two hundred three thousand, two hundred thirty-four".