390358386 has 256 divisors, whose sum is σ = 1094860800. Its totient is φ = 101606400.

The previous prime is 390358373. The next prime is 390358391. The reversal of 390358386 is 683853093.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9078081 + ... + 9078123.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 2^390358386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390358386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547430400).

390358386 is an abundant number, since it is smaller than the sum of its proper divisors (704502414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390358386 is a wasteful number, since it uses less digits than its factorization.

390358386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 390358386 is about 19757.4893647953. The cubic root of 390358386 is about 730.8380854340.

The spelling of 390358386 in words is "three hundred ninety million, three hundred fifty-eight thousand, three hundred eighty-six".