2299661 has 16 divisors (see below), whose sum is σ = 2911104. Its totient is φ = 1767744.

The previous prime is 2299657. The next prime is 2299667. The reversal of 2299661 is 1669922.

It is a cyclic number.

It is not a de Polignac number, because 2299661 - 2² = 2299657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2299667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3026 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (181944).

2^2299661 is an apocalyptic number.

It is an amenable number.

2299661 is a deficient number, since it is larger than the sum of its proper divisors (611443).

2299661 is a wasteful number, since it uses less digits than its factorization.

2299661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 11664, while the sum is 35.

The square root of 2299661 is about 1516.4633197015. The cubic root of 2299661 is about 131.9941266135.

The spelling of 2299661 in words is "two million, two hundred ninety-nine thousand, six hundred sixty-one".