400434300443023 has 8 divisors (see below), whose sum is σ = 499242764188800. Its totient is φ = 312026727617880.

The previous prime is 400434300443011. The next prime is 400434300443117. The reversal of 400434300443023 is 320344003434004.

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-400434300443023 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 400434300443023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400434300446023) 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, 2600222730073 + ... + 2600222730226.

It is an arithmetic number, because the mean of its divisors is an integer number (62405345523600).

Almost surely, 2^{400434300443023} is an apocalyptic number.

400434300443023 is a deficient number, since it is larger than the sum of its proper divisors (98808463745777).

400434300443023 is a wasteful number, since it uses less digits than its factorization.

400434300443023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200445460317.

The product of its (nonzero) digits is 165888, while the sum is 34.

Adding to 400434300443023 its reverse (320344003434004), we get a palindrome (720778303877027).

The spelling of 400434300443023 in words is "four hundred trillion, four hundred thirty-four billion, three hundred million, four hundred forty-three thousand, twenty-three".