400432244513 has 8 divisors (see below), whose sum is σ = 457806808128. Its totient is φ = 343100170224.

The previous prime is 400432244507. The next prime is 400432244533. The reversal of 400432244513 is 315442234004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-400432244513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400432244513.

It is not an unprimeable number, because it can be changed into a prime (400432244533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10602131 + ... + 10639832.

It is an arithmetic number, because the mean of its divisors is an integer number (57225851016).

Almost surely, 2^400432244513 is an apocalyptic number.

It is an amenable number.

400432244513 is a deficient number, since it is larger than the sum of its proper divisors (57374563615).

400432244513 is a wasteful number, since it uses less digits than its factorization.

400432244513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21244663.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 400432244513 its reverse (315442234004), we get a palindrome (715874478517).

The spelling of 400432244513 in words is "four hundred billion, four hundred thirty-two million, two hundred forty-four thousand, five hundred thirteen".