30243420250 has 32 divisors (see below), whose sum is σ = 56976366096. Its totient is φ = 12020299200.

The previous prime is 30243420247. The next prime is 30243420299. The reversal of 30243420250 is 5202434203.

It can be written as a sum of positive squares in 8 ways, for example, as 948701601 + 29294718649 = 30801^2 + 171157^2 .

It is a super-2 number, since 2×30243420250² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346017 + ... + 424516.

Almost surely, 2^30243420250 is an apocalyptic number.

30243420250 is a deficient number, since it is larger than the sum of its proper divisors (26732945846).

30243420250 is a wasteful number, since it uses less digits than its factorization.

30243420250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770707 (or 770697 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 30243420250 its reverse (5202434203), we get a palindrome (35445854453).

The spelling of 30243420250 in words is "thirty billion, two hundred forty-three million, four hundred twenty thousand, two hundred fifty".