30405102252 has 24 divisors (see below), whose sum is σ = 81080272896. Its totient is φ = 8687172048.

The previous prime is 30405102251. The next prime is 30405102257. The reversal of 30405102252 is 25220150403.

It is not an unprimeable number, because it can be changed into a prime (30405102251) 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, 180982668 + ... + 180982835.

It is an arithmetic number, because the mean of its divisors is an integer number (3378344704).

Almost surely, 2^30405102252 is an apocalyptic number.

It is an amenable number.

30405102252 is an abundant number, since it is smaller than the sum of its proper divisors (50675170644).

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

30405102252 is a wasteful number, since it uses less digits than its factorization.

30405102252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361965517 (or 361965515 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 30405102252 its reverse (25220150403), we get a palindrome (55625252655).

The spelling of 30405102252 in words is "thirty billion, four hundred five million, one hundred two thousand, two hundred fifty-two".