442010140 has 96 divisors (see below), whose sum is σ = 1120238784. Its totient is φ = 144322560.

The previous prime is 442010119. The next prime is 442010143. The reversal of 442010140 is 41010244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442010143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103732 + ... + 107908.

It is an arithmetic number, because the mean of its divisors is an integer number (11669154).

Almost surely, 2^442010140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442010140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560119392).

442010140 is an abundant number, since it is smaller than the sum of its proper divisors (678228644).

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

442010140 is a wasteful number, since it uses less digits than its factorization.

442010140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 442010140 is about 21024.0371955531. The cubic root of 442010140 is about 761.7469853442.

Adding to 442010140 its reverse (41010244), we get a palindrome (483020384).

The spelling of 442010140 in words is "four hundred forty-two million, ten thousand, one hundred forty".