390081416 has 16 divisors (see below), whose sum is σ = 732387840. Its totient is φ = 194778000.

The previous prime is 390081383. The next prime is 390081443. The reversal of 390081416 is 614180093.

It is a happy number.

It is a super-2 number, since 2×390081416² = 304327022217130112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26456 + ... + 38471.

It is an arithmetic number, because the mean of its divisors is an integer number (45774240).

Almost surely, 2^390081416 is an apocalyptic number.

It is an amenable number.

390081416 is a deficient number, since it is larger than the sum of its proper divisors (342306424).

390081416 is a wasteful number, since it uses less digits than its factorization.

390081416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65684 (or 65680 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 390081416 is about 19750.4788802702. The cubic root of 390081416 is about 730.6651946368.

The spelling of 390081416 in words is "three hundred ninety million, eighty-one thousand, four hundred sixteen".