42311302440 has 128 divisors (see below), whose sum is σ = 138917116800. Its totient is φ = 10224414720.

The previous prime is 42311302417. The next prime is 42311302447. The reversal of 42311302440 is 4420311324.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42311302440.

It is not an unprimeable number, because it can be changed into a prime (42311302447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361956 + ... + 464364.

It is an arithmetic number, because the mean of its divisors is an integer number (1085289975).

Almost surely, 2^42311302440 is an apocalyptic number.

42311302440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42311302440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69458558400).

42311302440 is an abundant number, since it is smaller than the sum of its proper divisors (96605814360).

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

42311302440 is a wasteful number, since it uses less digits than its factorization.

42311302440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102747 (or 102743 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42311302440 its reverse (4420311324), we get a palindrome (46731613764).

The spelling of 42311302440 in words is "forty-two billion, three hundred eleven million, three hundred two thousand, four hundred forty".