400189674348 has 18 divisors (see below), whose sum is σ = 1011590565804. Its totient is φ = 133396558104.

The previous prime is 400189674319. The next prime is 400189674373. The reversal of 400189674348 is 843476981004.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 400189674294 and 400189674303.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5558189886 + ... + 5558189957.

It is an arithmetic number, because the mean of its divisors is an integer number (56199475878).

Almost surely, 2^400189674348 is an apocalyptic number.

It is an amenable number.

400189674348 is an abundant number, since it is smaller than the sum of its proper divisors (611400891456).

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

400189674348 is a wasteful number, since it uses less digits than its factorization.

400189674348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11116379853 (or 11116379848 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 400189674348 in words is "four hundred billion, one hundred eighty-nine million, six hundred seventy-four thousand, three hundred forty-eight".