39990246 has 32 divisors (see below), whose sum is σ = 83116800. Its totient is φ = 12811680.

The previous prime is 39990241. The next prime is 39990277. The reversal of 39990246 is 64209993.

39990246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39990198 and 39990207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39990241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53745 + ... + 54483.

It is an arithmetic number, because the mean of its divisors is an integer number (2597400).

Almost surely, 2^39990246 is an apocalyptic number.

39990246 is an abundant number, since it is smaller than the sum of its proper divisors (43126554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39990246 is a wasteful number, since it uses less digits than its factorization.

39990246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 39990246 is about 6323.7841519141. The cubic root of 39990246 is about 341.9673885665.

The spelling of 39990246 in words is "thirty-nine million, nine hundred ninety thousand, two hundred forty-six".