42746121 has 24 divisors (see below), whose sum is σ = 70289856. Its totient is φ = 24779040.

The previous prime is 42746111. The next prime is 42746141. The reversal of 42746121 is 12164724.

42746121 is a `hidden beast` number, since 42 + 7 + 4 + 612 + 1 = 666.

It is not a de Polignac number, because 42746121 - 2⁵ = 42746089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42746101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7110 + ... + 11663.

It is an arithmetic number, because the mean of its divisors is an integer number (2928744).

Almost surely, 2^42746121 is an apocalyptic number.

It is an amenable number.

42746121 is a deficient number, since it is larger than the sum of its proper divisors (27543735).

42746121 is a wasteful number, since it uses less digits than its factorization.

42746121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18813 (or 18810 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 42746121 is about 6538.0517740379. The cubic root of 42746121 is about 349.6489568719.

The spelling of 42746121 in words is "forty-two million, seven hundred forty-six thousand, one hundred twenty-one".