42023517 has 16 divisors (see below), whose sum is σ = 57430080. Its totient is φ = 27324032.

The previous prime is 42023491. The next prime is 42023521. The reversal of 42023517 is 71532024.

It is a cyclic number.

It is not a de Polignac number, because 42023517 - 2⁷ = 42023389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42023537) 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, 23383 + ... + 25115.

It is an arithmetic number, because the mean of its divisors is an integer number (3589380).

Almost surely, 2^42023517 is an apocalyptic number.

It is an amenable number.

42023517 is a deficient number, since it is larger than the sum of its proper divisors (15406563).

42023517 is a wasteful number, since it uses less digits than its factorization.

42023517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 42023517 is about 6482.5548204392. The cubic root of 42023517 is about 347.6675299379.

The spelling of 42023517 in words is "forty-two million, twenty-three thousand, five hundred seventeen".