30136288 has 96 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 11681280.

The previous prime is 30136283. The next prime is 30136303. The reversal of 30136288 is 88263103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30136283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229983 + ... + 230113.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 2^30136288 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 30136288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37255680).

30136288 is an abundant number, since it is smaller than the sum of its proper divisors (44375072).

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

30136288 is a wasteful number, since it uses less digits than its factorization.

30136288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 30136288 is about 5489.6528123370. The cubic root of 30136288 is about 311.1930715278.

The spelling of 30136288 in words is "thirty million, one hundred thirty-six thousand, two hundred eighty-eight".