3261693838 has 16 divisors (see below), whose sum is σ = 5291513136. Its totient is φ = 1498933440.

The previous prime is 3261693833. The next prime is 3261693839. The reversal of 3261693838 is 8383961623.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3261693791 and 3261693800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261693833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263148 + ... + 275263.

It is an arithmetic number, because the mean of its divisors is an integer number (330719571).

Almost surely, 2^3261693838 is an apocalyptic number.

3261693838 is a deficient number, since it is larger than the sum of its proper divisors (2029819298).

3261693838 is a wasteful number, since it uses less digits than its factorization.

3261693838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538659.

The product of its digits is 1119744, while the sum is 49.

The square root of 3261693838 is about 57111.2409075481. The cubic root of 3261693838 is about 1483.0224691940.

The spelling of 3261693838 in words is "three billion, two hundred sixty-one million, six hundred ninety-three thousand, eight hundred thirty-eight".