30021096 has 32 divisors (see below), whose sum is σ = 85775040. Its totient is φ = 8577408.

The previous prime is 30021091. The next prime is 30021137. The reversal of 30021096 is 69012003.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30021091) 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, 89181 + ... + 89516.

It is an arithmetic number, because the mean of its divisors is an integer number (2680470).

Almost surely, 2^30021096 is an apocalyptic number.

It is an amenable number.

30021096 is an abundant number, since it is smaller than the sum of its proper divisors (55753944).

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

30021096 is a wasteful number, since it uses less digits than its factorization.

30021096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178713 (or 178709 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30021096 is about 5479.1510291285. The cubic root of 30021096 is about 310.7960670598.

Adding to 30021096 its reverse (69012003), we get a palindrome (99033099).

The spelling of 30021096 in words is "thirty million, twenty-one thousand, ninety-six".