4201491 has 16 divisors (see below), whose sum is σ = 6624000. Its totient is φ = 2317728.

The previous prime is 4201459. The next prime is 4201493. The reversal of 4201491 is 1941024.

It is not a de Polignac number, because 4201491 - 2⁵ = 4201459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (4201493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2841 + ... + 4058.

It is an arithmetic number, because the mean of its divisors is an integer number (414000).

Almost surely, 2^4201491 is an apocalyptic number.

4201491 is a deficient number, since it is larger than the sum of its proper divisors (2422509).

4201491 is a wasteful number, since it uses less digits than its factorization.

4201491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 4201491 is about 2049.7538876655. The cubic root of 4201491 is about 161.3619545826.

The spelling of 4201491 in words is "four million, two hundred one thousand, four hundred ninety-one".