442878878244 has 48 divisors (see below), whose sum is σ = 1157796392256. Its totient is φ = 130578537600.

The previous prime is 442878878203. The next prime is 442878878261.

442878878244 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×442878878244² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45334887 + ... + 45344654.

It is an arithmetic number, because the mean of its divisors is an integer number (24120758172).

Almost surely, 2^442878878244 is an apocalyptic number.

442878878244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442878878244 is an abundant number, since it is smaller than the sum of its proper divisors (714917514012).

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

442878878244 is a wasteful number, since it uses less digits than its factorization.

442878878244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90679596 (or 90679594 counting only the distinct ones).

The product of its digits is 205520896, while the sum is 66.

The spelling of 442878878244 in words is "four hundred forty-two billion, eight hundred seventy-eight million, eight hundred seventy-eight thousand, two hundred forty-four".