446774164 has 6 divisors (see below), whose sum is σ = 781854794. Its totient is φ = 223387080.

The previous prime is 446774147. The next prime is 446774177. The reversal of 446774164 is 461477644.

It can be written as a sum of positive squares in only one way, i.e., 421973764 + 24800400 = 20542^2 + 4980^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 446774164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55846767 + ... + 55846774.

Almost surely, 2^446774164 is an apocalyptic number.

It is an amenable number.

446774164 is a deficient number, since it is larger than the sum of its proper divisors (335080630).

446774164 is a wasteful number, since it uses less digits than its factorization.

446774164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111693545 (or 111693543 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

The square root of 446774164 is about 21137.0329989807. The cubic root of 446774164 is about 764.4739368172.

It can be divided in two parts, 44677 and 4164, that added together give a square (48841 = 221²).

The spelling of 446774164 in words is "four hundred forty-six million, seven hundred seventy-four thousand, one hundred sixty-four".