30302143240 has 16 divisors (see below), whose sum is σ = 68179822380. Its totient is φ = 12120857280.

The previous prime is 30302143237. The next prime is 30302143253. The reversal of 30302143240 is 4234120303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26191538244 + 4110604996 = 161838^2 + 64114^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378776751 + ... + 378776830.

Almost surely, 2^30302143240 is an apocalyptic number.

It is an amenable number.

30302143240 is an abundant number, since it is smaller than the sum of its proper divisors (37877679140).

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

30302143240 is a wasteful number, since it uses less digits than its factorization.

30302143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757553592 (or 757553588 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30302143240 its reverse (4234120303), we get a palindrome (34536263543).

The spelling of 30302143240 in words is "thirty billion, three hundred two million, one hundred forty-three thousand, two hundred forty".