39149829 has 12 divisors (see below), whose sum is σ = 56898816. Its totient is φ = 25938792.

The previous prime is 39149821. The next prime is 39149833. The reversal of 39149829 is 92894193.

It is not a de Polignac number, because 39149829 - 2³ = 39149821 is a prime.

It is a super-2 number, since 2×39149829² = 3065418221458482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39149821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11877 + ... + 14810.

It is an arithmetic number, because the mean of its divisors is an integer number (4741568).

Almost surely, 2^39149829 is an apocalyptic number.

It is an amenable number.

39149829 is a deficient number, since it is larger than the sum of its proper divisors (17748987).

39149829 is a wasteful number, since it uses less digits than its factorization.

39149829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26856 (or 26853 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 39149829 is about 6256.9824196652. The cubic root of 39149829 is about 339.5548644164.

The spelling of 39149829 in words is "thirty-nine million, one hundred forty-nine thousand, eight hundred twenty-nine".