42896081 has 12 divisors (see below), whose sum is σ = 45257520. Its totient is φ = 40652040.

The previous prime is 42896071. The next prime is 42896093. The reversal of 42896081 is 18069824.

It is not a de Polignac number, because 42896081 - 2¹⁰ = 42895057 is a prime.

It is a super-2 number, since 2×42896081² = 3680147530317122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42896071) 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, 68990 + ... + 69608.

It is an arithmetic number, because the mean of its divisors is an integer number (3771460).

Almost surely, 2^42896081 is an apocalyptic number.

It is an amenable number.

42896081 is a deficient number, since it is larger than the sum of its proper divisors (2361439).

42896081 is a wasteful number, since it uses less digits than its factorization.

42896081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 42896081 is about 6549.5099816704. The cubic root of 42896081 is about 350.0573538663.

The spelling of 42896081 in words is "forty-two million, eight hundred ninety-six thousand, eighty-one".