399240202 has 8 divisors (see below), whose sum is σ = 610159716. Its totient is φ = 195853632.

The previous prime is 399240199. The next prime is 399240211. The reversal of 399240202 is 202042993.

It can be written as a sum of positive squares in 2 ways, for example, as 348531561 + 50708641 = 18669^2 + 7121^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883103 + ... + 1883314.

Almost surely, 2^399240202 is an apocalyptic number.

399240202 is a deficient number, since it is larger than the sum of its proper divisors (210919514).

399240202 is a wasteful number, since it uses less digits than its factorization.

399240202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766472.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 399240202 is about 19980.9960212198. The cubic root of 399240202 is about 736.3394840711.

The spelling of 399240202 in words is "three hundred ninety-nine million, two hundred forty thousand, two hundred two".