442734164 has 6 divisors (see below), whose sum is σ = 774784794. Its totient is φ = 221367080.

The previous prime is 442734163. The next prime is 442734167. The reversal of 442734164 is 461437244.

It can be written as a sum of positive squares in only one way, i.e., 428821264 + 13912900 = 20708^2 + 3730^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442734163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55341767 + ... + 55341774.

It is an arithmetic number, because the mean of its divisors is an integer number (129130799).

Almost surely, 2^442734164 is an apocalyptic number.

It is an amenable number.

442734164 is a deficient number, since it is larger than the sum of its proper divisors (332050630).

442734164 is a wasteful number, since it uses less digits than its factorization.

442734164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110683545 (or 110683543 counting only the distinct ones).

The product of its digits is 64512, while the sum is 35.

The square root of 442734164 is about 21041.2491074080. The cubic root of 442734164 is about 762.1626788520.

The spelling of 442734164 in words is "four hundred forty-two million, seven hundred thirty-four thousand, one hundred sixty-four".