4272291 has 8 divisors (see below), whose sum is σ = 6329360. Its totient is φ = 2848176.

The previous prime is 4272269. The next prime is 4272311. The reversal of 4272291 is 1922724.

It is a de Polignac number, because none of the positive numbers 2^k-4272291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 158233 = 4272291 / (4 + 2 + 7 + 2 + 2 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4272211) 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, 79090 + ... + 79143.

It is an arithmetic number, because the mean of its divisors is an integer number (791170).

Almost surely, 2^4272291 is an apocalyptic number.

4272291 is a deficient number, since it is larger than the sum of its proper divisors (2057069).

4272291 is a wasteful number, since it uses less digits than its factorization.

4272291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158242 (or 158236 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 4272291 is about 2066.9521039444. The cubic root of 4272291 is about 162.2632892804.

The spelling of 4272291 in words is "four million, two hundred seventy-two thousand, two hundred ninety-one".