2691449302 has 4 divisors (see below), whose sum is σ = 4037173956. Its totient is φ = 1345724650.

The previous prime is 2691449297. The next prime is 2691449347. The reversal of 2691449302 is 2039441962.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2039441962 = 2 ⋅1019720981.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 672862324 + ... + 672862327.

It is an arithmetic number, because the mean of its divisors is an integer number (1009293489).

Almost surely, 2^2691449302 is an apocalyptic number.

2691449302 is a deficient number, since it is larger than the sum of its proper divisors (1345724654).

2691449302 is a wasteful number, since it uses less digits than its factorization.

2691449302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345724653.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 2691449302 is about 51879.1798508804. The cubic root of 2691449302 is about 1391.0051391429.

The spelling of 2691449302 in words is "two billion, six hundred ninety-one million, four hundred forty-nine thousand, three hundred two".