2406491 has 4 divisors (see below), whose sum is σ = 2416800. Its totient is φ = 2396184.

The previous prime is 2406479. The next prime is 2406529. The reversal of 2406491 is 1946042.

2406491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2406491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2406491.

It is not an unprimeable number, because it can be changed into a prime (2406461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4796 + ... + 5273.

It is an arithmetic number, because the mean of its divisors is an integer number (604200).

2^2406491 is an apocalyptic number.

2406491 is a deficient number, since it is larger than the sum of its proper divisors (10309).

2406491 is a wasteful number, since it uses less digits than its factorization.

2406491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2406491 is about 1551.2868851376. The cubic root of 2406491 is about 134.0071838430.

The spelling of 2406491 in words is "two million, four hundred six thousand, four hundred ninety-one".