400078103934 has 8 divisors (see below), whose sum is σ = 800156207880. Its totient is φ = 133359367976.

The previous prime is 400078103927. The next prime is 400078103939. The reversal of 400078103934 is 439301870004.

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

400078103934 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 400078103892 and 400078103901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400078103939) 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, 33339841989 + ... + 33339842000.

It is an arithmetic number, because the mean of its divisors is an integer number (100019525985).

Almost surely, 2^400078103934 is an apocalyptic number.

400078103934 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.

400078103934 is a wasteful number, since it uses less digits than its factorization.

400078103934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66679683994.

The product of its (nonzero) digits is 72576, while the sum is 39.

Adding to 400078103934 its reverse (439301870004), we get a palindrome (839379973938).

The spelling of 400078103934 in words is "four hundred billion, seventy-eight million, one hundred three thousand, nine hundred thirty-four".