42135670 has 8 divisors (see below), whose sum is σ = 75844224. Its totient is φ = 16854264.

The previous prime is 42135661. The next prime is 42135671. The reversal of 42135670 is 7653124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42135671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106774 + ... + 2106793.

It is an arithmetic number, because the mean of its divisors is an integer number (9480528).

Almost surely, 2^42135670 is an apocalyptic number.

42135670 is a deficient number, since it is larger than the sum of its proper divisors (33708554).

42135670 is a wasteful number, since it uses less digits than its factorization.

42135670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213574.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 42135670 is about 6491.1994269164. The cubic root of 42135670 is about 347.9765419956.

Adding to 42135670 its reverse (7653124), we get a palindrome (49788794).

The spelling of 42135670 in words is "forty-two million, one hundred thirty-five thousand, six hundred seventy".