39236890349 has 4 divisors (see below), whose sum is σ = 39617831136. Its totient is φ = 38855949564.

The previous prime is 39236890333. The next prime is 39236890361. The reversal of 39236890349 is 94309863293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94309863293 = 881 ⋅107048653.

It is a cyclic number.

It is not a de Polignac number, because 39236890349 - 2⁴ = 39236890333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39236890294 and 39236890303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39236892349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190470239 + ... + 190470444.

It is an arithmetic number, because the mean of its divisors is an integer number (9904457784).

Almost surely, 2^39236890349 is an apocalyptic number.

It is an amenable number.

39236890349 is a deficient number, since it is larger than the sum of its proper divisors (380940787).

39236890349 is a wasteful number, since it uses less digits than its factorization.

39236890349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380940786.

The product of its (nonzero) digits is 7558272, while the sum is 56.

The spelling of 39236890349 in words is "thirty-nine billion, two hundred thirty-six million, eight hundred ninety thousand, three hundred forty-nine".