42340220 has 24 divisors (see below), whose sum is σ = 95754624. Its totient is φ = 15633216.

The previous prime is 42340213. The next prime is 42340223. The reversal of 42340220 is 2204324.

42340220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42340223) 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, 81164 + ... + 81683.

It is an arithmetic number, because the mean of its divisors is an integer number (3989776).

Almost surely, 2^42340220 is an apocalyptic number.

It is an amenable number.

42340220 is an abundant number, since it is smaller than the sum of its proper divisors (53414404).

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

42340220 is a wasteful number, since it uses less digits than its factorization.

42340220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162869 (or 162867 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42340220 is about 6506.9362990581. The cubic root of 42340220 is about 348.5387238803.

Adding to 42340220 its reverse (2204324), we get a palindrome (44544544).

The spelling of 42340220 in words is "forty-two million, three hundred forty thousand, two hundred twenty".