239630 has 16 divisors (see below), whose sum is σ = 445824. Its totient is φ = 92640.
The previous prime is 239623. The next prime is 239633. The reversal of 239630 is 36932.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 239596 and 239605.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (239633) by changing a digit.
239630 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77 + ... + 696.
It is an arithmetic number, because the mean of its divisors is an integer number (27864).
2239630 is an apocalyptic number.
239630 is a deficient number, since it is larger than the sum of its proper divisors (206194).
239630 is a wasteful number, since it uses less digits than its factorization.
239630 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 811.
The product of its (nonzero) digits is 972, while the sum is 23.
The square root of 239630 is about 489.5201732309. The cubic root of 239630 is about 62.1126982485.
The spelling of 239630 in words is "two hundred thirty-nine thousand, six hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.090 sec. • engine limits •