442713620 has 24 divisors (see below), whose sum is σ = 930105288. Its totient is φ = 177008000.

The previous prime is 442713619. The next prime is 442713653. The reversal of 442713620 is 26317244.

It can be written as a sum of positive squares in 4 ways, for example, as 620944 + 442092676 = 788^2 + 21026^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71030 + ... + 77010.

It is an arithmetic number, because the mean of its divisors is an integer number (38754387).

Almost surely, 2^442713620 is an apocalyptic number.

It is an amenable number.

442713620 is an abundant number, since it is smaller than the sum of its proper divisors (487391668).

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

442713620 is a wasteful number, since it uses less digits than its factorization.

442713620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9691 (or 9689 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 442713620 is about 21040.7609177995. The cubic root of 442713620 is about 762.1508899024.

The spelling of 442713620 in words is "four hundred forty-two million, seven hundred thirteen thousand, six hundred twenty".