42966215 has 4 divisors (see below), whose sum is σ = 51559464. Its totient is φ = 34372968.

The previous prime is 42966211. The next prime is 42966221. The reversal of 42966215 is 51266924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42966215 - 2² = 42966211 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 (42966211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4296617 + ... + 4296626.

It is an arithmetic number, because the mean of its divisors is an integer number (12889866).

Almost surely, 2^42966215 is an apocalyptic number.

42966215 is a deficient number, since it is larger than the sum of its proper divisors (8593249).

42966215 is an equidigital number, since it uses as much as digits as its factorization.

42966215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8593248.

The product of its digits is 25920, while the sum is 35.

The square root of 42966215 is about 6554.8619359983. The cubic root of 42966215 is about 350.2480282743.

The spelling of 42966215 in words is "forty-two million, nine hundred sixty-six thousand, two hundred fifteen".