42423440000 has 80 divisors (see below), whose sum is σ = 105610701570. Its totient is φ = 16969344000.

The previous prime is 42423439997. The next prime is 42423440071. The reversal of 42423440000 is 4432424.

It can be written as a sum of positive squares in 5 ways, for example, as 7824463936 + 34598976064 = 88456^2 + 186008^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×42423440000² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 185147 + ... + 345146.

Almost surely, 2^42423440000 is an apocalyptic number.

42423440000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42423440000 is an abundant number, since it is smaller than the sum of its proper divisors (63187261570).

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

42423440000 is an frugal number, since it uses more digits than its factorization.

42423440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530327 (or 530300 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 42423440000 its reverse (4432424), we get a palindrome (42427872424).

The spelling of 42423440000 in words is "forty-two billion, four hundred twenty-three million, four hundred forty thousand".