42342420040 has 16 divisors (see below), whose sum is σ = 95270445180. Its totient is φ = 16936968000.

The previous prime is 42342420031. The next prime is 42342420041. The reversal of 42342420040 is 4002424324.

42342420040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42319895524 + 22524516 = 205718^2 + 4746^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42342419987 and 42342420014.

It is not an unprimeable number, because it can be changed into a prime (42342420041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529280211 + ... + 529280290.

Almost surely, 2^42342420040 is an apocalyptic number.

42342420040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42342420040 is an abundant number, since it is smaller than the sum of its proper divisors (52928025140).

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

42342420040 is a wasteful number, since it uses less digits than its factorization.

42342420040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058560512 (or 1058560508 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 42342420040 its reverse (4002424324), we get a palindrome (46344844364).

The spelling of 42342420040 in words is "forty-two billion, three hundred forty-two million, four hundred twenty thousand, forty".