390355 has 16 divisors (see below), whose sum is σ = 564480. Its totient is φ = 253152.

The previous prime is 390353. The next prime is 390359. The reversal of 390355 is 553093.

It is a cyclic number.

It is not a de Polignac number, because 390355 - 2¹ = 390353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372 + ... + 958.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

390355 is a Friedman number, since it can be written as 5^(5+3)-30*9, using all its digits and the basic arithmetic operations.

2³⁹⁰³⁵⁵ is an apocalyptic number.

390355 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

390355 is a deficient number, since it is larger than the sum of its proper divisors (174125).

390355 is a wasteful number, since it uses less digits than its factorization.

390355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 390355 is about 624.7839626623. The cubic root of 390355 is about 73.0835972312.

The spelling of 390355 in words is "three hundred ninety thousand, three hundred fifty-five".