4228491 has 8 divisors (see below), whose sum is σ = 5769280. Its totient is φ = 2753352.

The previous prime is 4228489. The next prime is 4228501. The reversal of 4228491 is 1948224.

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

It is not a de Polignac number, because 4228491 - 2¹ = 4228489 is a prime.

It is a super-2 number, since 2×4228491² = 35760272274162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4228391) 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, 16261 + ... + 16518.

It is an arithmetic number, because the mean of its divisors is an integer number (721160).

Almost surely, 2^4228491 is an apocalyptic number.

4228491 is a deficient number, since it is larger than the sum of its proper divisors (1540789).

4228491 is a wasteful number, since it uses less digits than its factorization.

4228491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32825.

The product of its digits is 4608, while the sum is 30.

The square root of 4228491 is about 2056.3294969435. The cubic root of 4228491 is about 161.7068697030.

The spelling of 4228491 in words is "four million, two hundred twenty-eight thousand, four hundred ninety-one".