2693939408 has 20 divisors (see below), whose sum is σ = 5526538020. Its totient is φ = 1267736064.

The previous prime is 2693939393. The next prime is 2693939431. The reversal of 2693939408 is 8049393962.

It can be written as a sum of positive squares in 2 ways, for example, as 1280780944 + 1413158464 = 35788^2 + 37592^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2693939408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4951823 + ... + 4952366.

It is an arithmetic number, because the mean of its divisors is an integer number (276326901).

Almost surely, 2^2693939408 is an apocalyptic number.

It is an amenable number.

2693939408 is an abundant number, since it is smaller than the sum of its proper divisors (2832598612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2693939408 is a wasteful number, since it uses less digits than its factorization.

2693939408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9904214 (or 9904208 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 2693939408 is about 51903.1733904585. The cubic root of 2693939408 is about 1391.4339889548.

The spelling of 2693939408 in words is "two billion, six hundred ninety-three million, nine hundred thirty-nine thousand, four hundred eight".