400242042234413 has 4 divisors (see below), whose sum is σ = 400242091068768. Its totient is φ = 400241993400060.

The previous prime is 400242042234367. The next prime is 400242042234421. The reversal of 400242042234413 is 314432240242004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 400242042234413 - 2³² = 400237747267117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400242042234113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8789081 + ... + 29626542.

It is an arithmetic number, because the mean of its divisors is an integer number (100060522767192).

Almost surely, 2^{400242042234413} is an apocalyptic number.

It is an amenable number.

400242042234413 is a deficient number, since it is larger than the sum of its proper divisors (48834355).

400242042234413 is a wasteful number, since it uses less digits than its factorization.

400242042234413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48834354.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 400242042234413 its reverse (314432240242004), we get a palindrome (714674282476417).

The spelling of 400242042234413 in words is "four hundred trillion, two hundred forty-two billion, forty-two million, two hundred thirty-four thousand, four hundred thirteen".