30102320 has 40 divisors (see below), whose sum is σ = 70267824. Its totient is φ = 11992832.

The previous prime is 30102299. The next prime is 30102329. The reversal of 30102320 is 2320103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×30102320² = 1812299338764800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30102329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24767 + ... + 25953.

Almost surely, 2^30102320 is an apocalyptic number.

It is an amenable number.

30102320 is an abundant number, since it is smaller than the sum of its proper divisors (40165504).

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

30102320 is a wasteful number, since it uses less digits than its factorization.

30102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30102320 is about 5486.5581196229. The cubic root of 30102320 is about 311.0761075509.

Adding to 30102320 its reverse (2320103), we get a palindrome (32422423).

The spelling of 30102320 in words is "thirty million, one hundred two thousand, three hundred twenty".