442386120 has 256 divisors, whose sum is σ = 1575936000. Its totient is φ = 98150400.

The previous prime is 442386037. The next prime is 442386143. The reversal of 442386120 is 21683244.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 777196 + ... + 777764.

It is an arithmetic number, because the mean of its divisors is an integer number (6156000).

Almost surely, 2^442386120 is an apocalyptic number.

442386120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442386120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787968000).

442386120 is an abundant number, since it is smaller than the sum of its proper divisors (1133549880).

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

442386120 is a wasteful number, since it uses less digits than its factorization.

442386120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 442386120 is about 21032.9769647570. The cubic root of 442386120 is about 761.9629083426.

The spelling of 442386120 in words is "four hundred forty-two million, three hundred eighty-six thousand, one hundred twenty".