42493317 has 16 divisors (see below), whose sum is σ = 57697920. Its totient is φ = 27813632.

The previous prime is 42493313. The next prime is 42493327. The reversal of 42493317 is 71339424.

It is a cyclic number.

It is not a de Polignac number, because 42493317 - 2² = 42493313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42493313) 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, 44113 + ... + 45065.

It is an arithmetic number, because the mean of its divisors is an integer number (3606120).

Almost surely, 2^42493317 is an apocalyptic number.

It is an amenable number.

42493317 is a deficient number, since it is larger than the sum of its proper divisors (15204603).

42493317 is a wasteful number, since it uses less digits than its factorization.

42493317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its digits is 18144, while the sum is 33.

The square root of 42493317 is about 6518.6898223493. The cubic root of 42493317 is about 348.9583095385.

The spelling of 42493317 in words is "forty-two million, four hundred ninety-three thousand, three hundred seventeen".