39449428 has 12 divisors (see below), whose sum is σ = 69812820. Its totient is φ = 19502912.

The previous prime is 39449413. The next prime is 39449429. The reversal of 39449428 is 82494493.

It can be written as a sum of positive squares in 2 ways, for example, as 9659664 + 29789764 = 3108^2 + 5458^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39449429) 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, 55051 + ... + 55762.

It is an arithmetic number, because the mean of its divisors is an integer number (5817735).

Almost surely, 2^39449428 is an apocalyptic number.

It is an amenable number.

39449428 is a deficient number, since it is larger than the sum of its proper divisors (30363392).

39449428 is a wasteful number, since it uses less digits than its factorization.

39449428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110906 (or 110904 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 39449428 is about 6280.8779641066. The cubic root of 39449428 is about 340.4188264206.

The spelling of 39449428 in words is "thirty-nine million, four hundred forty-nine thousand, four hundred twenty-eight".