399016210 has 16 divisors (see below), whose sum is σ = 719266392. Its totient is φ = 159376000.

The previous prime is 399016201. The next prime is 399016217. The reversal of 399016210 is 12610993.

It can be written as a sum of positive squares in 4 ways, for example, as 398920729 + 95481 = 19973^2 + 309^2 .

It is not an unprimeable number, because it can be changed into a prime (399016217) 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, 21451 + ... + 35470.

Almost surely, 2^399016210 is an apocalyptic number.

399016210 is a deficient number, since it is larger than the sum of its proper divisors (320250182).

399016210 is a wasteful number, since it uses less digits than its factorization.

399016210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57629.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 399016210 is about 19975.3901088314. The cubic root of 399016210 is about 736.2017516085.

The spelling of 399016210 in words is "three hundred ninety-nine million, sixteen thousand, two hundred ten".