2491066 has 8 divisors (see below), whose sum is σ = 3754944. Its totient is φ = 1239420.

The previous prime is 2491063. The next prime is 2491081. The reversal of 2491066 is 6601942.

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

It is a d-powerful number, because it can be written as 2³ + 4³ + 9⁶ + 1 + 0 + 6⁷ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (2491063) 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, 2530 + ... + 3373.

It is an arithmetic number, because the mean of its divisors is an integer number (469368).

2^2491066 is an apocalyptic number.

2491066 is the 844-th nonagonal number.

2491066 is a deficient number, since it is larger than the sum of its proper divisors (1263878).

2491066 is a wasteful number, since it uses less digits than its factorization.

2491066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2491066 is about 1578.3111226878. The cubic root of 2491066 is about 135.5590171511.

It can be divided in two parts, 24910 and 66, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 2491066 in words is "two million, four hundred ninety-one thousand, sixty-six".