42024831 has 8 divisors (see below), whose sum is σ = 56113920. Its totient is φ = 27976152.

The previous prime is 42024817. The next prime is 42024839. The reversal of 42024831 is 13842024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42024831 - 2²³ = 33636223 is a prime.

It is a super-2 number, since 2×42024831² = 3532172841157122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42024839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7585 + ... + 11898.

It is an arithmetic number, because the mean of its divisors is an integer number (7014240).

Almost surely, 2^42024831 is an apocalyptic number.

42024831 is a deficient number, since it is larger than the sum of its proper divisors (14089089).

42024831 is a wasteful number, since it uses less digits than its factorization.

42024831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20205.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 42024831 is about 6482.6561685778. The cubic root of 42024831 is about 347.6711535468.

Adding to 42024831 its reverse (13842024), we get a palindrome (55866855).

The spelling of 42024831 in words is "forty-two million, twenty-four thousand, eight hundred thirty-one".