42427164 has 24 divisors (see below), whose sum is σ = 106612240. Its totient is φ = 13054464.

The previous prime is 42427163. The next prime is 42427183. The reversal of 42427164 is 46172424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42427163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135829 + ... + 136140.

Almost surely, 2^42427164 is an apocalyptic number.

It is an amenable number.

42427164 is an abundant number, since it is smaller than the sum of its proper divisors (64185076).

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

42427164 is a wasteful number, since it uses less digits than its factorization.

42427164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271989 (or 271987 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 42427164 is about 6513.6137435375. The cubic root of 42427164 is about 348.7771310196. Note that the first 3 decimals are identical.

Adding to 42427164 its reverse (46172424), we get a palindrome (88599588).

The spelling of 42427164 in words is "forty-two million, four hundred twenty-seven thousand, one hundred sixty-four".