400671226446 has 64 divisors (see below), whose sum is σ = 812122315776. Its totient is φ = 131770800000.

The previous prime is 400671226409. The next prime is 400671226471. The reversal of 400671226446 is 644622176004.

It is a junction number, because it is equal to n+sod(n) for n = 400671226398 and 400671226407.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 344514661 + ... + 344515823.

It is an arithmetic number, because the mean of its divisors is an integer number (12689411184).

Almost surely, 2^400671226446 is an apocalyptic number.

400671226446 is an abundant number, since it is smaller than the sum of its proper divisors (411451089330).

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

400671226446 is a wasteful number, since it uses less digits than its factorization.

400671226446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777.

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 400671226446 in words is "four hundred billion, six hundred seventy-one million, two hundred twenty-six thousand, four hundred forty-six".