2949690491 has 4 divisors (see below), whose sum is σ = 3217844184. Its totient is φ = 2681536800.

The previous prime is 2949690481. The next prime is 2949690493. The reversal of 2949690491 is 1940969492.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2949690491 - 2¹⁴ = 2949674107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2949690493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134076830 + ... + 134076851.

It is an arithmetic number, because the mean of its divisors is an integer number (804461046).

Almost surely, 2^2949690491 is an apocalyptic number.

2949690491 is a deficient number, since it is larger than the sum of its proper divisors (268153693).

2949690491 is a wasteful number, since it uses less digits than its factorization.

2949690491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268153692.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 2949690491 is about 54311.0531199681. The cubic root of 2949690491 is about 1434.1419825933.

The spelling of 2949690491 in words is "two billion, nine hundred forty-nine million, six hundred ninety thousand, four hundred ninety-one".