2642949 has 20 divisors (see below), whose sum is σ = 4015264. Its totient is φ = 1732104.

The previous prime is 2642933. The next prime is 2642971. The reversal of 2642949 is 9492462.

2642949 is a `hidden beast` number, since 2 + 642 + 9 + 4 + 9 = 666.

It is not a de Polignac number, because 2642949 - 2⁴ = 2642933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5184 + ... + 5670.

2^2642949 is an apocalyptic number.

It is an amenable number.

2642949 is a deficient number, since it is larger than the sum of its proper divisors (1372315).

2642949 is an equidigital number, since it uses as much as digits as its factorization.

2642949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 557 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2642949 is about 1625.7149196584. The cubic root of 2642949 is about 138.2599071628.

The spelling of 2642949 in words is "two million, six hundred forty-two thousand, nine hundred forty-nine".