393630 has 16 divisors (see below), whose sum is σ = 944784. Its totient is φ = 104960.

The previous prime is 393629. The next prime is 393637. The reversal of 393630 is 36393.

393630 is nontrivially palindromic in base 9.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 393630.

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 393630.

It is not an unprimeable number, because it can be changed into a prime (393637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6531 + ... + 6590.

It is an arithmetic number, because the mean of its divisors is an integer number (59049).

2³⁹³⁶³⁰ is an apocalyptic number.

393630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

393630 is an abundant number, since it is smaller than the sum of its proper divisors (551154).

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

393630 is a wasteful number, since it uses less digits than its factorization.

393630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131.

The product of its (nonzero) digits is 1458, while the sum is 24.

The square root of 393630 is about 627.3993943255. The cubic root of 393630 is about 73.2874138603.

The spelling of 393630 in words is "three hundred ninety-three thousand, six hundred thirty".