39649274 has 16 divisors (see below), whose sum is σ = 69808128. Its totient is φ = 16533072.

The previous prime is 39649271. The next prime is 39649277. The reversal of 39649274 is 47294693.

It is an interprime number because it is at equal distance from previous prime (39649271) and next prime (39649277).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (39649271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37754 + ... + 38789.

It is an arithmetic number, because the mean of its divisors is an integer number (4363008).

Almost surely, 2^39649274 is an apocalyptic number.

39649274 is a deficient number, since it is larger than the sum of its proper divisors (30158854).

39649274 is a wasteful number, since it uses less digits than its factorization.

39649274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76589.

The product of its digits is 326592, while the sum is 44.

The square root of 39649274 is about 6296.7669482045. The cubic root of 39649274 is about 340.9926985649.

The spelling of 39649274 in words is "thirty-nine million, six hundred forty-nine thousand, two hundred seventy-four".