42982393 has 4 divisors (see below), whose sum is σ = 43896960. Its totient is φ = 42067828.

The previous prime is 42982343. The next prime is 42982397. The reversal of 42982393 is 39328924.

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 42982393 - 2¹⁷ = 42851321 is a prime.

It is a super-2 number, since 2×42982393² = 3694972216012898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42982397) 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, 457213 + ... + 457306.

It is an arithmetic number, because the mean of its divisors is an integer number (10974240).

Almost surely, 2^42982393 is an apocalyptic number.

It is an amenable number.

42982393 is a deficient number, since it is larger than the sum of its proper divisors (914567).

42982393 is an equidigital number, since it uses as much as digits as its factorization.

42982393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914566.

The product of its digits is 93312, while the sum is 40.

The square root of 42982393 is about 6556.0958656810. The cubic root of 42982393 is about 350.2919822009.

The spelling of 42982393 in words is "forty-two million, nine hundred eighty-two thousand, three hundred ninety-three".