42340000 has 120 divisors (see below), whose sum is σ = 109230660. Its totient is φ = 16128000.

The previous prime is 42339991. The next prime is 42340009. The reversal of 42340000 is 4324.

It is an interprime number because it is at equal distance from previous prime (42339991) and next prime (42340009).

It can be written as a sum of positive squares in 10 ways, for example, as 2347024 + 39992976 = 1532^2 + 6324^2 .

It is not an unprimeable number, because it can be changed into a prime (42340009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 579964 + ... + 580036.

Almost surely, 2^42340000 is an apocalyptic number.

42340000 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 42340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54615330).

42340000 is an abundant number, since it is smaller than the sum of its proper divisors (66890660).

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

42340000 is an equidigital number, since it uses as much as digits as its factorization.

42340000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 42340000 is about 6506.9193939990. The cubic root of 42340000 is about 348.5381202096.

Adding to 42340000 its reverse (4324), we get a palindrome (42344324).

The spelling of 42340000 in words is "forty-two million, three hundred forty thousand".