442702240 has 48 divisors (see below), whose sum is σ = 1056077568. Its totient is φ = 175355136.

The previous prime is 442702237. The next prime is 442702303. The reversal of 442702240 is 42207244.

It is a happy 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, 3049 + ... + 29911.

It is an arithmetic number, because the mean of its divisors is an integer number (22001616).

Almost surely, 2^442702240 is an apocalyptic number.

442702240 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 442702240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528038784).

442702240 is an abundant number, since it is smaller than the sum of its proper divisors (613375328).

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

442702240 is a wasteful number, since it uses less digits than its factorization.

442702240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26981 (or 26973 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 442702240 is about 21040.4904885794. The cubic root of 442702240 is about 762.1443594569.

Adding to 442702240 its reverse (42207244), we get a palindrome (484909484).

The spelling of 442702240 in words is "four hundred forty-two million, seven hundred two thousand, two hundred forty".