4280491 has 4 divisors (see below), whose sum is σ = 4505800. Its totient is φ = 4055184.

The previous prime is 4280483. The next prime is 4280503. The reversal of 4280491 is 1940824.

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 4280491 - 2³ = 4280483 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 (4280191) 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, 112626 + ... + 112663.

It is an arithmetic number, because the mean of its divisors is an integer number (1126450).

Almost surely, 2^4280491 is an apocalyptic number.

4280491 is the 1195-th hex number.

4280491 is a deficient number, since it is larger than the sum of its proper divisors (225309).

4280491 is a wasteful number, since it uses less digits than its factorization.

4280491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225308.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4280491 is about 2068.9347500586. The cubic root of 4280491 is about 162.3670360064.

The spelling of 4280491 in words is "four million, two hundred eighty thousand, four hundred ninety-one".