42444264040 has 32 divisors (see below), whose sum is σ = 95505592680. Its totient is φ = 16976639232.

The previous prime is 42444264013. The next prime is 42444264053. The reversal of 42444264040 is 4046244424.

It can be written as a sum of positive squares in 4 ways, for example, as 35427521284 + 7016742756 = 188222^2 + 83766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42444263987 and 42444264005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031542 + ... + 1071898.

Almost surely, 2^42444264040 is an apocalyptic number.

42444264040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42444264040 is an abundant number, since it is smaller than the sum of its proper divisors (53061328640).

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

42444264040 is a wasteful number, since it uses less digits than its factorization.

42444264040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66661 (or 66657 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

The spelling of 42444264040 in words is "forty-two billion, four hundred forty-four million, two hundred sixty-four thousand, forty".