42746181 has 16 divisors (see below), whose sum is σ = 60177600. Its totient is φ = 26915328.

The previous prime is 42746161. The next prime is 42746183. The reversal of 42746181 is 18164724.

It is not a de Polignac number, because 42746181 - 2¹⁷ = 42615109 is a prime.

It is a super-2 number, since 2×42746181² = 3654471980169522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42746183) 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, 21685 + ... + 23573.

It is an arithmetic number, because the mean of its divisors is an integer number (3761100).

Almost surely, 2^42746181 is an apocalyptic number.

It is an amenable number.

42746181 is a deficient number, since it is larger than the sum of its proper divisors (17431419).

42746181 is a wasteful number, since it uses less digits than its factorization.

42746181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308.

The product of its digits is 10752, while the sum is 33.

The square root of 42746181 is about 6538.0563625591. The cubic root of 42746181 is about 349.6491204651.

The spelling of 42746181 in words is "forty-two million, seven hundred forty-six thousand, one hundred eighty-one".