390986486 has 8 divisors (see below), whose sum is σ = 639796104. Its totient is φ = 177721120.

The previous prime is 390986483. The next prime is 390986501. The reversal of 390986486 is 684689093.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390986483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8886035 + ... + 8886078.

It is an arithmetic number, because the mean of its divisors is an integer number (79974513).

Almost surely, 2^390986486 is an apocalyptic number.

390986486 is a deficient number, since it is larger than the sum of its proper divisors (248809618).

390986486 is a wasteful number, since it uses less digits than its factorization.

390986486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17772126.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 390986486 is about 19773.3782141545. The cubic root of 390986486 is about 731.2298565469.

The spelling of 390986486 in words is "three hundred ninety million, nine hundred eighty-six thousand, four hundred eighty-six".