30643104 has 48 divisors (see below), whose sum is σ = 82621728. Its totient is φ = 9937152.

The previous prime is 30643087. The next prime is 30643117. The reversal of 30643104 is 40134603.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762 + ... + 7865.

It is an arithmetic number, because the mean of its divisors is an integer number (1721286).

Almost surely, 2^30643104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30643104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41310864).

30643104 is an abundant number, since it is smaller than the sum of its proper divisors (51978624).

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

30643104 is a wasteful number, since it uses less digits than its factorization.

30643104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8677 (or 8669 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30643104 is about 5535.6213743355. The cubic root of 30643104 is about 312.9278755380.

Adding to 30643104 its reverse (40134603), we get a palindrome (70777707).

The spelling of 30643104 in words is "thirty million, six hundred forty-three thousand, one hundred four".