39749099 has 16 divisors (see below), whose sum is σ = 45045504. Its totient is φ = 34819200.

The previous prime is 39749093. The next prime is 39749117. The reversal of 39749099 is 99094793.

It is not a de Polignac number, because 39749099 - 2²⁰ = 38700523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39749093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20429 + ... + 22289.

It is an arithmetic number, because the mean of its divisors is an integer number (2815344).

Almost surely, 2^39749099 is an apocalyptic number.

39749099 is a deficient number, since it is larger than the sum of its proper divisors (5296405).

39749099 is a wasteful number, since it uses less digits than its factorization.

39749099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 39749099 is about 6304.6886521065. The cubic root of 39749099 is about 341.2786312392.

The spelling of 39749099 in words is "thirty-nine million, seven hundred forty-nine thousand, ninety-nine".