442721423604 has 24 divisors (see below), whose sum is σ = 1077930423360. Its totient is φ = 141157555264.

The previous prime is 442721423591. The next prime is 442721423609. The reversal of 442721423604 is 406324127244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442721423609) 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, 802031289 + ... + 802031840.

It is an arithmetic number, because the mean of its divisors is an integer number (44913767640).

Almost surely, 2^442721423604 is an apocalyptic number.

It is an amenable number.

442721423604 is an abundant number, since it is smaller than the sum of its proper divisors (635208999756).

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

442721423604 is a wasteful number, since it uses less digits than its factorization.

442721423604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604063159 (or 1604063157 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 39.

The spelling of 442721423604 in words is "four hundred forty-two billion, seven hundred twenty-one million, four hundred twenty-three thousand, six hundred four".