30668610 has 96 divisors (see below), whose sum is σ = 88515072. Its totient is φ = 6773760.

The previous prime is 30668593. The next prime is 30668611. The reversal of 30668610 is 1686603.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (30668611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45234 + ... + 45906.

It is an arithmetic number, because the mean of its divisors is an integer number (922032).

Almost surely, 2^30668610 is an apocalyptic number.

30668610 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 30668610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44257536).

30668610 is an abundant number, since it is smaller than the sum of its proper divisors (57846462).

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

30668610 is a wasteful number, since it uses less digits than its factorization.

30668610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30668610 is about 5537.9247015466. The cubic root of 30668610 is about 313.0146740221.

The spelling of 30668610 in words is "thirty million, six hundred sixty-eight thousand, six hundred ten".