390241 has 12 divisors (see below), whose sum is σ = 438912. Its totient is φ = 346104.

The previous prime is 390223. The next prime is 390263. The reversal of 390241 is 142093.

It is not a de Polignac number, because 390241 - 2⁵ = 390209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8280 + ... + 8326.

It is an arithmetic number, because the mean of its divisors is an integer number (36576).

2³⁹⁰²⁴¹ is an apocalyptic number.

390241 is the 361-st octagonal number.

It is an amenable number.

390241 is a deficient number, since it is larger than the sum of its proper divisors (48671).

390241 is a wasteful number, since it uses less digits than its factorization.

390241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 390241 is about 624.6927244654. The cubic root of 390241 is about 73.0764820486.

The spelling of 390241 in words is "three hundred ninety thousand, two hundred forty-one".