390237 has 4 divisors (see below), whose sum is σ = 520320. Its totient is φ = 260156.

The previous prime is 390223. The next prime is 390263. The reversal of 390237 is 732093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 390237 - 2⁷ = 390109 is a prime.

It is a D-number.

390237 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 390237.

It is not an unprimeable number, because it can be changed into a prime (390437) 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, 65037 + ... + 65042.

It is an arithmetic number, because the mean of its divisors is an integer number (130080).

2³⁹⁰²³⁷ is an apocalyptic number.

It is an amenable number.

390237 is a deficient number, since it is larger than the sum of its proper divisors (130083).

390237 is a wasteful number, since it uses less digits than its factorization.

390237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130082.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 390237 is about 624.6895228832. The cubic root of 390237 is about 73.0762323679.

The spelling of 390237 in words is "three hundred ninety thousand, two hundred thirty-seven".