42181064 has 32 divisors (see below), whose sum is σ = 83592000. Its totient is φ = 19899072.

The previous prime is 42181031. The next prime is 42181081. The reversal of 42181064 is 46018124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54182 + ... + 54954.

It is an arithmetic number, because the mean of its divisors is an integer number (2612250).

Almost surely, 2^42181064 is an apocalyptic number.

It is an amenable number.

42181064 is a deficient number, since it is larger than the sum of its proper divisors (41410936).

42181064 is a wasteful number, since it uses less digits than its factorization.

42181064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 42181064 is about 6494.6950659750. The cubic root of 42181064 is about 348.1014589447.

Adding to 42181064 its reverse (46018124), we get a palindrome (88199188).

The spelling of 42181064 in words is "forty-two million, one hundred eighty-one thousand, sixty-four".