2681949 has 12 divisors (see below), whose sum is σ = 3706976. Its totient is φ = 1724688.

The previous prime is 2681929. The next prime is 2681951. The reversal of 2681949 is 9491862.

It is a de Polignac number, because none of the positive numbers 2^k-2681949 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 (2681929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1992 + ... + 3054.

2^2681949 is an apocalyptic number.

2681949 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2681949 is a deficient number, since it is larger than the sum of its proper divisors (1025027).

2681949 is a wasteful number, since it uses less digits than its factorization.

2681949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1095 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 2681949 is about 1637.6657168055. The cubic root of 2681949 is about 138.9366548833.

It can be divided in two parts, 26819 and 49, that multiplied together give a palindrome (1314131).

The spelling of 2681949 in words is "two million, six hundred eighty-one thousand, nine hundred forty-nine".