4249693939 has 4 divisors (see below), whose sum is σ = 4283156224. Its totient is φ = 4216231656.

The previous prime is 4249693937. The next prime is 4249693951. The reversal of 4249693939 is 9393969424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4249693939 - 2¹ = 4249693937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4249693933) 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, 16730952 + ... + 16731205.

It is an arithmetic number, because the mean of its divisors is an integer number (1070789056).

Almost surely, 2^4249693939 is an apocalyptic number.

4249693939 is a deficient number, since it is larger than the sum of its proper divisors (33462285).

4249693939 is a wasteful number, since it uses less digits than its factorization.

4249693939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33462284.

The product of its digits is 11337408, while the sum is 58.

The square root of 4249693939 is about 65189.6766290492. The cubic root of 4249693939 is about 1619.7670166140.

The spelling of 4249693939 in words is "four billion, two hundred forty-nine million, six hundred ninety-three thousand, nine hundred thirty-nine".