30040402250 has 16 divisors (see below), whose sum is σ = 56235633480. Its totient is φ = 12016160800.

The previous prime is 30040402243. The next prime is 30040402277. The reversal of 30040402250 is 5220404003.

It can be written as a sum of positive squares in 4 ways, for example, as 7301873401 + 22738528849 = 85451^2 + 150793^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60080555 + ... + 60081054.

Almost surely, 2^30040402250 is an apocalyptic number.

30040402250 is a deficient number, since it is larger than the sum of its proper divisors (26195231230).

30040402250 is a wasteful number, since it uses less digits than its factorization.

30040402250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120161626 (or 120161616 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 30040402250 its reverse (5220404003), we get a palindrome (35260806253).

The spelling of 30040402250 in words is "thirty billion, forty million, four hundred two thousand, two hundred fifty".