42890113 has 4 divisors (see below), whose sum is σ = 49017280. Its totient is φ = 36762948.

The previous prime is 42890093. The next prime is 42890119. The reversal of 42890113 is 31109824.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42890113 - 2¹³ = 42881921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42890119) 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, 3063573 + ... + 3063586.

It is an arithmetic number, because the mean of its divisors is an integer number (12254320).

Almost surely, 2^42890113 is an apocalyptic number.

It is an amenable number.

42890113 is a deficient number, since it is larger than the sum of its proper divisors (6127167).

42890113 is an equidigital number, since it uses as much as digits as its factorization.

42890113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127166.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 42890113 is about 6549.0543592186. The cubic root of 42890113 is about 350.0411189786.

Adding to 42890113 its reverse (31109824), we get a palindrome (73999937).

The spelling of 42890113 in words is "forty-two million, eight hundred ninety thousand, one hundred thirteen".