42244242440 has 16 divisors (see below), whose sum is σ = 95049545580. Its totient is φ = 16897696960.

The previous prime is 42244242419. The next prime is 42244242473. The reversal of 42244242440 is 4424244224.

It can be written as a sum of positive squares in 2 ways, for example, as 40265238244 + 1979004196 = 200662^2 + 44486^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42244242397 and 42244242406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528052991 + ... + 528053070.

Almost surely, 2^42244242440 is an apocalyptic number.

42244242440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42244242440 is an abundant number, since it is smaller than the sum of its proper divisors (52805303140).

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

42244242440 is a wasteful number, since it uses less digits than its factorization.

42244242440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056106072 (or 1056106068 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 42244242440 its reverse (4424244224), we get a palindrome (46668486664).

The spelling of 42244242440 in words is "forty-two billion, two hundred forty-four million, two hundred forty-two thousand, four hundred forty".