30049288 has 8 divisors (see below), whose sum is σ = 56342430. Its totient is φ = 15024640.

The previous prime is 30049273. The next prime is 30049289. The reversal of 30049288 is 88294003.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 40804 = 5478^2 + 202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (30049289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1878073 + ... + 1878088.

Almost surely, 2^30049288 is an apocalyptic number.

It is an amenable number.

30049288 is a deficient number, since it is larger than the sum of its proper divisors (26293142).

30049288 is a wasteful number, since it uses less digits than its factorization.

30049288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756167 (or 3756163 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 30049288 is about 5481.7230867675. The cubic root of 30049288 is about 310.8933233519.

The spelling of 30049288 in words is "thirty million, forty-nine thousand, two hundred eighty-eight".