30388130 has 8 divisors (see below), whose sum is σ = 54698652. Its totient is φ = 12155248.

The previous prime is 30388097. The next prime is 30388139. The reversal of 30388130 is 3188303.

It can be written as a sum of positive squares in 2 ways, for example, as 26697889 + 3690241 = 5167^2 + 1921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30388130.

It is not an unprimeable number, because it can be changed into a prime (30388139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519397 + ... + 1519416.

Almost surely, 2^30388130 is an apocalyptic number.

30388130 is a deficient number, since it is larger than the sum of its proper divisors (24310522).

30388130 is a wasteful number, since it uses less digits than its factorization.

30388130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038820.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30388130 is about 5512.5429703541. The cubic root of 30388130 is about 312.0575241842.

The spelling of 30388130 in words is "thirty million, three hundred eighty-eight thousand, one hundred thirty".