42180670 has 24 divisors (see below), whose sum is σ = 88322184. Its totient is φ = 14461776.

The previous prime is 42180661. The next prime is 42180679. The reversal of 42180670 is 7608124.

It is an interprime number because it is at equal distance from previous prime (42180661) and next prime (42180679).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42180679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42552 + ... + 43531.

It is an arithmetic number, because the mean of its divisors is an integer number (3680091).

Almost surely, 2^42180670 is an apocalyptic number.

42180670 is an abundant number, since it is smaller than the sum of its proper divisors (46141514).

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

42180670 is a wasteful number, since it uses less digits than its factorization.

42180670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86104 (or 86097 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 42180670 is about 6494.6647334562. The cubic root of 42180670 is about 348.1003751060.

Adding to 42180670 its reverse (7608124), we get a palindrome (49788794).

The spelling of 42180670 in words is "forty-two million, one hundred eighty thousand, six hundred seventy".