2690206349 has 16 divisors (see below), whose sum is σ = 2780749440. Its totient is φ = 2600970240.

The previous prime is 2690206331. The next prime is 2690206411. The reversal of 2690206349 is 9436020962.

It is a cyclic number.

It is not a de Polignac number, because 2690206349 - 2⁸ = 2690206093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690206049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2840294 + ... + 2841240.

It is an arithmetic number, because the mean of its divisors is an integer number (173796840).

Almost surely, 2^2690206349 is an apocalyptic number.

It is an amenable number.

2690206349 is a deficient number, since it is larger than the sum of its proper divisors (90543091).

2690206349 is a wasteful number, since it uses less digits than its factorization.

2690206349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 2690206349 is about 51867.1991628621. The cubic root of 2690206349 is about 1390.7909769280.

The spelling of 2690206349 in words is "two billion, six hundred ninety million, two hundred six thousand, three hundred forty-nine".