42423597 has 12 divisors (see below), whose sum is σ = 61398844. Its totient is φ = 28226880.

The previous prime is 42423559. The next prime is 42423611. The reversal of 42423597 is 79532424.

42423597 is a `hidden beast` number, since 42 + 4 + 23 + 597 = 666.

42423597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31573161 + 10850436 = 5619^2 + 3294^2 .

It is not a de Polignac number, because 42423597 - 2¹⁶ = 42358061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513 + ... + 9225.

Almost surely, 2^42423597 is an apocalyptic number.

It is an amenable number.

42423597 is a deficient number, since it is larger than the sum of its proper divisors (18975247).

42423597 is a wasteful number, since it uses less digits than its factorization.

42423597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260 (or 9257 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 42423597 is about 6513.3399266429. The cubic root of 42423597 is about 348.7673564415.

The spelling of 42423597 in words is "forty-two million, four hundred twenty-three thousand, five hundred ninety-seven".