42754 has 4 divisors (see below), whose sum is σ = 64134. Its totient is φ = 21376.

The previous prime is 42751. The next prime is 42767. The reversal of 42754 is 45724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42025 + 729 = 205^2 + 27^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10687 + ... + 10690.

2⁴²⁷⁵⁴ is an apocalyptic number.

42754 is a deficient number, since it is larger than the sum of its proper divisors (21380).

42754 is a wasteful number, since it uses less digits than its factorization.

42754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21379.

The product of its digits is 1120, while the sum is 22.

The square root of 42754 is about 206.7704040718. The cubic root of 42754 is about 34.9670438079.

The spelling of 42754 in words is "forty-two thousand, seven hundred fifty-four".