399460246 has 4 divisors (see below), whose sum is σ = 599190372. Its totient is φ = 199730122.

The previous prime is 399460241. The next prime is 399460277. The reversal of 399460246 is 642064993.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399460241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99865060 + ... + 99865063.

It is an arithmetic number, because the mean of its divisors is an integer number (149797593).

Almost surely, 2^399460246 is an apocalyptic number.

399460246 is a deficient number, since it is larger than the sum of its proper divisors (199730126).

399460246 is a wasteful number, since it uses less digits than its factorization.

399460246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199730125.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 399460246 is about 19986.5015948264. The cubic root of 399460246 is about 736.4747387593.

The spelling of 399460246 in words is "three hundred ninety-nine million, four hundred sixty thousand, two hundred forty-six".