42581411 has 12 divisors (see below), whose sum is σ = 44370696. Its totient is φ = 40855680.

The previous prime is 42581401. The next prime is 42581431. The reversal of 42581411 is 11418524.

It is not a de Polignac number, because 42581411 - 2⁶ = 42581347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42581401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122540 + ... + 122886.

It is an arithmetic number, because the mean of its divisors is an integer number (3697558).

Almost surely, 2^42581411 is an apocalyptic number.

42581411 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42581411 is a deficient number, since it is larger than the sum of its proper divisors (1789285).

42581411 is an equidigital number, since it uses as much as digits as its factorization.

42581411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 461 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 42581411 is about 6525.4433565851. The cubic root of 42581411 is about 349.1992879362.

Adding to 42581411 its reverse (11418524), we get a palindrome (53999935).

The spelling of 42581411 in words is "forty-two million, five hundred eighty-one thousand, four hundred eleven".