30129560 has 48 divisors (see below), whose sum is σ = 69420240. Its totient is φ = 11766720.

The previous prime is 30129557. The next prime is 30129569. The reversal of 30129560 is 6592103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30129569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292469 + ... + 292571.

It is an arithmetic number, because the mean of its divisors is an integer number (1446255).

Almost surely, 2^30129560 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 30129560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34710120).

30129560 is an abundant number, since it is smaller than the sum of its proper divisors (39290680).

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

30129560 is a wasteful number, since it uses less digits than its factorization.

30129560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 30129560 is about 5489.0399889234. The cubic root of 30129560 is about 311.1699115994.

The spelling of 30129560 in words is "thirty million, one hundred twenty-nine thousand, five hundred sixty".