42272691 has 8 divisors (see below), whose sum is σ = 58307280. Its totient is φ = 27209952.

The previous prime is 42272687. The next prime is 42272719. The reversal of 42272691 is 19627224.

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

It is not a de Polignac number, because 42272691 - 2² = 42272687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42272651) 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, 242860 + ... + 243033.

It is an arithmetic number, because the mean of its divisors is an integer number (7288410).

Almost surely, 2^42272691 is an apocalyptic number.

42272691 is a deficient number, since it is larger than the sum of its proper divisors (16034589).

42272691 is a wasteful number, since it uses less digits than its factorization.

42272691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485925.

The product of its digits is 12096, while the sum is 33.

The square root of 42272691 is about 6501.7452272448. The cubic root of 42272691 is about 348.3533288787.

The spelling of 42272691 in words is "forty-two million, two hundred seventy-two thousand, six hundred ninety-one".