399080302 has 4 divisors (see below), whose sum is σ = 598620456. Its totient is φ = 199540150.

The previous prime is 399080263. The next prime is 399080309. The reversal of 399080302 is 203080993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203080993 = 8521 ⋅23833.

It is a super-2 number, since 2×399080302² = 318530174888822408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399080309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99770074 + ... + 99770077.

It is an arithmetic number, because the mean of its divisors is an integer number (149655114).

Almost surely, 2^399080302 is an apocalyptic number.

399080302 is a deficient number, since it is larger than the sum of its proper divisors (199540154).

399080302 is a wasteful number, since it uses less digits than its factorization.

399080302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199540153.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 399080302 is about 19976.9943184654. The cubic root of 399080302 is about 736.2411669801.

The spelling of 399080302 in words is "three hundred ninety-nine million, eighty thousand, three hundred two".