442801740 has 48 divisors (see below), whose sum is σ = 1242743040. Its totient is φ = 117804480.

The previous prime is 442801717. The next prime is 442801741. The reversal of 442801740 is 47108244.

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

It is a junction number, because it is equal to n+sod(n) for n = 442801698 and 442801707.

It is not an unprimeable number, because it can be changed into a prime (442801741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17935 + ... + 34745.

It is an arithmetic number, because the mean of its divisors is an integer number (25890480).

Almost surely, 2^442801740 is an apocalyptic number.

It is an amenable number.

442801740 is an abundant number, since it is smaller than the sum of its proper divisors (799941300).

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

442801740 is a wasteful number, since it uses less digits than its factorization.

442801740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17262 (or 17260 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 442801740 is about 21042.8548443409. The cubic root of 442801740 is about 762.2014540277.

Adding to 442801740 its reverse (47108244), we get a palindrome (489909984).

The spelling of 442801740 in words is "four hundred forty-two million, eight hundred one thousand, seven hundred forty".