400243130346 has 8 divisors (see below), whose sum is σ = 800486260704. Its totient is φ = 133414376780.

The previous prime is 400243130341. The next prime is 400243130369. The reversal of 400243130346 is 643031342004.

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

400243130346 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (400243130341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33353594190 + ... + 33353594201.

It is an arithmetic number, because the mean of its divisors is an integer number (100060782588).

Almost surely, 2^400243130346 is an apocalyptic number.

400243130346 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400243130346 is a wasteful number, since it uses less digits than its factorization.

400243130346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66707188396.

The product of its (nonzero) digits is 20736, while the sum is 30.

The spelling of 400243130346 in words is "four hundred billion, two hundred forty-three million, one hundred thirty thousand, three hundred forty-six".