3990385226 has 8 divisors (see below), whose sum is σ = 5993813280. Its totient is φ = 1992447468.

The previous prime is 3990385171. The next prime is 3990385237. The reversal of 3990385226 is 6225830993.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370756 + ... + 1373663.

It is an arithmetic number, because the mean of its divisors is an integer number (749226660).

Almost surely, 2^3990385226 is an apocalyptic number.

3990385226 is a deficient number, since it is larger than the sum of its proper divisors (2003428054).

3990385226 is a wasteful number, since it uses less digits than its factorization.

3990385226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745148.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 3990385226 is about 63169.4960087541. The cubic root of 3990385226 is about 1586.1281563423.

The spelling of 3990385226 in words is "three billion, nine hundred ninety million, three hundred eighty-five thousand, two hundred twenty-six".