42213197 has 8 divisors (see below), whose sum is σ = 45513216. Its totient is φ = 38920752.

The previous prime is 42213187. The next prime is 42213203. The reversal of 42213197 is 79131224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42213197 - 2⁴ = 42213181 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 (42213137) 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, 16028 + ... + 18474.

It is an arithmetic number, because the mean of its divisors is an integer number (5689152).

Almost surely, 2^42213197 is an apocalyptic number.

It is an amenable number.

42213197 is a deficient number, since it is larger than the sum of its proper divisors (3300019).

42213197 is a wasteful number, since it uses less digits than its factorization.

42213197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787.

The product of its digits is 3024, while the sum is 29.

The square root of 42213197 is about 6497.1683832266. The cubic root of 42213197 is about 348.1898296019.

The spelling of 42213197 in words is "forty-two million, two hundred thirteen thousand, one hundred ninety-seven".