42343120040 has 64 divisors (see below), whose sum is σ = 102630931200. Its totient is φ = 15629766912.

The previous prime is 42343119953. The next prime is 42343120091. The reversal of 42343120040 is 4002134324.

It is a junction number, because it is equal to n+sod(n) for n = 42343119988 and 42343120015.

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, 2111099 + ... + 2131061.

It is an arithmetic number, because the mean of its divisors is an integer number (1603608300).

Almost surely, 2^42343120040 is an apocalyptic number.

42343120040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42343120040 is an abundant number, since it is smaller than the sum of its proper divisors (60287811160).

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

42343120040 is a wasteful number, since it uses less digits than its factorization.

42343120040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24066 (or 24062 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 42343120040 its reverse (4002134324), we get a palindrome (46345254364).

The spelling of 42343120040 in words is "forty-two billion, three hundred forty-three million, one hundred twenty thousand, forty".