42746857 has 24 divisors (see below), whose sum is σ = 48628800. Its totient is φ = 37483776.

The previous prime is 42746849. The next prime is 42746863. The reversal of 42746857 is 75864724.

It is not a de Polignac number, because 42746857 - 2³ = 42746849 is a prime.

It is a super-3 number, since 3×42746857³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42746897) 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, 392119 + ... + 392227.

It is an arithmetic number, because the mean of its divisors is an integer number (2026200).

Almost surely, 2^42746857 is an apocalyptic number.

It is an amenable number.

42746857 is a deficient number, since it is larger than the sum of its proper divisors (5881943).

42746857 is a wasteful number, since it uses less digits than its factorization.

42746857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 208 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 42746857 is about 6538.1080596760. The cubic root of 42746857 is about 349.6509636049.

The spelling of 42746857 in words is "forty-two million, seven hundred forty-six thousand, eight hundred fifty-seven".