390694546 has 8 divisors (see below), whose sum is σ = 639318384. Its totient is φ = 177588420.

The previous prime is 390694543. The next prime is 390694571. The reversal of 390694546 is 645496093.

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

It is a super-2 number, since 2×390694546² = 305284456548292232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 390694496 and 390694505.

It is not an unprimeable number, because it can be changed into a prime (390694543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8879400 + ... + 8879443.

It is an arithmetic number, because the mean of its divisors is an integer number (79914798).

Almost surely, 2^390694546 is an apocalyptic number.

390694546 is a deficient number, since it is larger than the sum of its proper divisors (248623838).

390694546 is a wasteful number, since it uses less digits than its factorization.

390694546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17758856.

The product of its (nonzero) digits is 699840, while the sum is 46.

The square root of 390694546 is about 19765.9946878471. The cubic root of 390694546 is about 731.0478141096.

The spelling of 390694546 in words is "three hundred ninety million, six hundred ninety-four thousand, five hundred forty-six".