442173118040 has 32 divisors (see below), whose sum is σ = 1011199185360. Its totient is φ = 173969750400.

The previous prime is 442173117983. The next prime is 442173118043. The reversal of 442173118040 is 40811371244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442173118043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90606806 + ... + 90611685.

Almost surely, 2^442173118040 is an apocalyptic number.

442173118040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442173118040 is an abundant number, since it is smaller than the sum of its proper divisors (569026067320).

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

442173118040 is a wasteful number, since it uses less digits than its factorization.

442173118040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181218563 (or 181218559 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

Adding to 442173118040 its reverse (40811371244), we get a palindrome (482984489284).

The spelling of 442173118040 in words is "four hundred forty-two billion, one hundred seventy-three million, one hundred eighteen thousand, forty".