42530893 has 4 divisors (see below), whose sum is σ = 42559900. Its totient is φ = 42501888.

The previous prime is 42530881. The next prime is 42530927. The reversal of 42530893 is 39803524.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6985449 + 35545444 = 2643^2 + 5962^2 .

It is a cyclic number.

It is not a de Polignac number, because 42530893 - 2¹⁷ = 42399821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42530833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12180 + ... + 15277.

It is an arithmetic number, because the mean of its divisors is an integer number (10639975).

Almost surely, 2^42530893 is an apocalyptic number.

It is an amenable number.

42530893 is a deficient number, since it is larger than the sum of its proper divisors (29007).

42530893 is a wasteful number, since it uses less digits than its factorization.

42530893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29006.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 42530893 is about 6521.5713597261. The cubic root of 42530893 is about 349.0611382124.

The spelling of 42530893 in words is "forty-two million, five hundred thirty thousand, eight hundred ninety-three".