2390669 has 4 divisors (see below), whose sum is σ = 2449020. Its totient is φ = 2332320.

The previous prime is 2390653. The next prime is 2390699. The reversal of 2390669 is 9660932.

2390669 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 can be written as a sum of positive squares in 2 ways, for example, as 532900 + 1857769 = 730^2 + 1363^2 .

It is a cyclic number.

It is not a de Polignac number, because 2390669 - 2⁴ = 2390653 is a prime.

It is a super-2 number, since 2×2390669² = 11430596535122, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 3⁵ + 9⁴ + 0 + 6³ + 6⁷ + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390699) 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, 29114 + ... + 29195.

It is an arithmetic number, because the mean of its divisors is an integer number (612255).

2^2390669 is an apocalyptic number.

It is an amenable number.

2390669 is a deficient number, since it is larger than the sum of its proper divisors (58351).

2390669 is an equidigital number, since it uses as much as digits as its factorization.

2390669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58350.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 2390669 is about 1546.1788382978. The cubic root of 2390669 is about 133.7128513595.

The spelling of 2390669 in words is "two million, three hundred ninety thousand, six hundred sixty-nine".