442140767023 has 4 divisors (see below), whose sum is σ = 442207774800. Its totient is φ = 442073759248.

The previous prime is 442140766999. The next prime is 442140767083. The reversal of 442140767023 is 320767041244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442140767023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442140767083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33493990 + ... + 33507187.

It is an arithmetic number, because the mean of its divisors is an integer number (110551943700).

Almost surely, 2^442140767023 is an apocalyptic number.

442140767023 is a deficient number, since it is larger than the sum of its proper divisors (67007777).

442140767023 is an equidigital number, since it uses as much as digits as its factorization.

442140767023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67007776.

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 442140767023 in words is "four hundred forty-two billion, one hundred forty million, seven hundred sixty-seven thousand, twenty-three".