39490828 has 24 divisors (see below), whose sum is σ = 74603088. Its totient is φ = 18182976.

The previous prime is 39490823. The next prime is 39490853. The reversal of 39490828 is 82809493.

It is a happy number.

It is a super-2 number, since 2×39490828² = 3119050992251168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39490823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33375 + ... + 34537.

It is an arithmetic number, because the mean of its divisors is an integer number (3108462).

Almost surely, 2^39490828 is an apocalyptic number.

It is an amenable number.

39490828 is a deficient number, since it is larger than the sum of its proper divisors (35112260).

39490828 is a wasteful number, since it uses less digits than its factorization.

39490828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833 (or 1831 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 39490828 is about 6284.1728174836. The cubic root of 39490828 is about 340.5378683851.

The spelling of 39490828 in words is "thirty-nine million, four hundred ninety thousand, eight hundred twenty-eight".