42340422 has 32 divisors (see below), whose sum is σ = 86134752. Its totient is φ = 13873664.

The previous prime is 42340411. The next prime is 42340427. The reversal of 42340422 is 22404324.

It is a super-2 number, since 2×42340422² = 3585422670276168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42340427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133408 + ... + 133724.

It is an arithmetic number, because the mean of its divisors is an integer number (2691711).

Almost surely, 2^42340422 is an apocalyptic number.

42340422 is an abundant number, since it is smaller than the sum of its proper divisors (43794330).

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

42340422 is a wasteful number, since it uses less digits than its factorization.

42340422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 42340422 is about 6506.9518209374. The cubic root of 42340422 is about 348.5392781579.

Adding to 42340422 its reverse (22404324), we get a palindrome (64744746).

The spelling of 42340422 in words is "forty-two million, three hundred forty thousand, four hundred twenty-two".