2302991 has 8 divisors (see below), whose sum is σ = 2403120. Its totient is φ = 2204928.

The previous prime is 2302987. The next prime is 2302999. The reversal of 2302991 is 1992032.

2302991 = T₁₈ + T₁₉ + ... + T₂₃₉.

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

It is a cyclic number.

It is not a de Polignac number, because 2302991 - 2² = 2302987 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2302991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302999) 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, 2015 + ... + 2943.

It is an arithmetic number, because the mean of its divisors is an integer number (300390).

2^2302991 is an apocalyptic number.

2302991 is a deficient number, since it is larger than the sum of its proper divisors (100129).

2302991 is an equidigital number, since it uses as much as digits as its factorization.

2302991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2302991 is about 1517.5608719257. The cubic root of 2302991 is about 132.0578067899.

The spelling of 2302991 in words is "two million, three hundred two thousand, nine hundred ninety-one".