42351340 has 24 divisors (see below), whose sum is σ = 89061840. Its totient is φ = 16916928.

The previous prime is 42351311. The next prime is 42351343. The reversal of 42351340 is 4315324.

42351340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42351343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23719 + ... + 25441.

It is an arithmetic number, because the mean of its divisors is an integer number (3710910).

Almost surely, 2^42351340 is an apocalyptic number.

It is an amenable number.

42351340 is an abundant number, since it is smaller than the sum of its proper divisors (46710500).

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

42351340 is a wasteful number, since it uses less digits than its factorization.

42351340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961 (or 2959 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 42351340 is about 6507.7907157499. The cubic root of 42351340 is about 348.5692339671.

Adding to 42351340 its reverse (4315324), we get a palindrome (46666664).

The spelling of 42351340 in words is "forty-two million, three hundred fifty-one thousand, three hundred forty".