396610830 has 160 divisors (see below), whose sum is σ = 1329799680. Its totient is φ = 82399680.

The previous prime is 396610829. The next prime is 396610831. The reversal of 396610830 is 38016693.

It is a happy number.

396610830 is a `hidden beast` number, since 3 + 9 + 6 + 610 + 8 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (396610829) and next prime (396610831).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396610831) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 59191 + ... + 65549.

It is an arithmetic number, because the mean of its divisors is an integer number (8311248).

Almost surely, 2^396610830 is an apocalyptic number.

396610830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 396610830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664899840).

396610830 is an abundant number, since it is smaller than the sum of its proper divisors (933188850).

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

396610830 is a wasteful number, since it uses less digits than its factorization.

396610830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396 (or 6387 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 396610830 is about 19915.0905094604. The cubic root of 396610830 is about 734.7194264372.

The spelling of 396610830 in words is "three hundred ninety-six million, six hundred ten thousand, eight hundred thirty".