390666062 has 4 divisors (see below), whose sum is σ = 585999096. Its totient is φ = 195333030.

The previous prime is 390666019. The next prime is 390666121. The reversal of 390666062 is 260666093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 260666093 = 6883 ⋅37871.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97666514 + ... + 97666517.

It is an arithmetic number, because the mean of its divisors is an integer number (146499774).

Almost surely, 2^390666062 is an apocalyptic number.

390666062 is a deficient number, since it is larger than the sum of its proper divisors (195333034).

390666062 is a wasteful number, since it uses less digits than its factorization.

390666062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195333033.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 390666062 is about 19765.2741443168. The cubic root of 390666062 is about 731.0300477393.

The spelling of 390666062 in words is "three hundred ninety million, six hundred sixty-six thousand, sixty-two".