39023236849 has 27 divisors (see below), whose sum is σ = 42479557281. Its totient is φ = 35842201920.

The previous prime is 39023236807. The next prime is 39023236873. The reversal of 39023236849 is 94863232093.

It is a happy number.

The square root of 39023236849 is 197543.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 13720608225 + 25302628624 = 117135^2 + 159068^2 .

It is not a de Polignac number, because 39023236849 - 2¹¹ = 39023234801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39023236349) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 138872589 + ... + 138872869.

Almost surely, 2^39023236849 is an apocalyptic number.

39023236849 is the 197543-rd square number.

39023236849 is the 98772-nd centered octagonal number.

It is an amenable number.

39023236849 is a deficient number, since it is larger than the sum of its proper divisors (3456320432).

39023236849 is an frugal number, since it uses more digits than its factorization.

39023236849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 49.

Multiplying 39023236849 by its sum of digits (49), we get a square (1912138605601 = 1382801²).

The spelling of 39023236849 in words is "thirty-nine billion, twenty-three million, two hundred thirty-six thousand, eight hundred forty-nine".