42824941 has 4 divisors (see below), whose sum is σ = 42844732. Its totient is φ = 42805152.

The previous prime is 42824933. The next prime is 42824983. The reversal of 42824941 is 14942824.

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 34269316 + 8555625 = 5854^2 + 2925^2 .

It is a cyclic number.

It is not a de Polignac number, because 42824941 - 2³ = 42824933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42824897 and 42824906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42824911) 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, 6186 + ... + 11131.

It is an arithmetic number, because the mean of its divisors is an integer number (10711183).

Almost surely, 2^42824941 is an apocalyptic number.

It is an amenable number.

42824941 is a deficient number, since it is larger than the sum of its proper divisors (19791).

42824941 is a wasteful number, since it uses less digits than its factorization.

42824941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19790.

The product of its digits is 18432, while the sum is 34.

The square root of 42824941 is about 6544.0767874468. The cubic root of 42824941 is about 349.8637319867.

The spelling of 42824941 in words is "forty-two million, eight hundred twenty-four thousand, nine hundred forty-one".