42240335340 has 144 divisors (see below), whose sum is σ = 140782828032. Its totient is φ = 9430372224.

The previous prime is 42240335339. The next prime is 42240335359. The reversal of 42240335340 is 4353304224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42240335298 and 42240335307.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40644 + ... + 293483.

It is an arithmetic number, because the mean of its divisors is an integer number (977658528).

Almost surely, 2^42240335340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42240335340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70391414016).

42240335340 is an abundant number, since it is smaller than the sum of its proper divisors (98542492692).

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

42240335340 is a wasteful number, since it uses less digits than its factorization.

42240335340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334196 (or 334187 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 42240335340 its reverse (4353304224), we get a palindrome (46593639564).

The spelling of 42240335340 in words is "forty-two billion, two hundred forty million, three hundred thirty-five thousand, three hundred forty".