40664226444 has 12 divisors (see below), whose sum is σ = 94883195064. Its totient is φ = 13554742144.

The previous prime is 40664226433. The next prime is 40664226509. The reversal of 40664226444 is 44462246604.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 40664226396 and 40664226405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694342757 + ... + 1694342780.

It is an arithmetic number, because the mean of its divisors is an integer number (7906932922).

Almost surely, 2^40664226444 is an apocalyptic number.

It is an amenable number.

40664226444 is an abundant number, since it is smaller than the sum of its proper divisors (54218968620).

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

40664226444 is a wasteful number, since it uses less digits than its factorization.

40664226444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388685544 (or 3388685542 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 40664226444 in words is "forty billion, six hundred sixty-four million, two hundred twenty-six thousand, four hundred forty-four".