42597849 has 16 divisors (see below), whose sum is σ = 66137472. Its totient is φ = 23881728.

The previous prime is 42597787. The next prime is 42597851. The reversal of 42597849 is 94879524.

It is not a de Polignac number, because 42597849 - 2⁸ = 42597593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42597798 and 42597807.

It is not an unprimeable number, because it can be changed into a prime (42597889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18024 + ... + 20249.

It is an arithmetic number, because the mean of its divisors is an integer number (4133592).

Almost surely, 2^42597849 is an apocalyptic number.

It is an amenable number.

42597849 is a deficient number, since it is larger than the sum of its proper divisors (23539623).

42597849 is a wasteful number, since it uses less digits than its factorization.

42597849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38336.

The product of its digits is 725760, while the sum is 48.

The square root of 42597849 is about 6526.7027663285. The cubic root of 42597849 is about 349.2442167701.

The spelling of 42597849 in words is "forty-two million, five hundred ninety-seven thousand, eight hundred forty-nine".