42197534 has 16 divisors (see below), whose sum is σ = 65598720. Its totient is φ = 20343960.

The previous prime is 42197521. The next prime is 42197539. The reversal of 42197534 is 43579124.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 42197494 and 42197503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42197539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3689 + ... + 9899.

It is an arithmetic number, because the mean of its divisors is an integer number (4099920).

Almost surely, 2^42197534 is an apocalyptic number.

42197534 is a deficient number, since it is larger than the sum of its proper divisors (23401186).

42197534 is a wasteful number, since it uses less digits than its factorization.

42197534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335.

The product of its digits is 30240, while the sum is 35.

The square root of 42197534 is about 6495.9629001404. The cubic root of 42197534 is about 348.1467595642.

The spelling of 42197534 in words is "forty-two million, one hundred ninety-seven thousand, five hundred thirty-four".