30125343440 has 40 divisors (see below), whose sum is σ = 70154691360. Its totient is φ = 12030650496.

The previous prime is 30125343433. The next prime is 30125343481. The reversal of 30125343440 is 4434352103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent 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, 254654 + ... + 353693.

It is an arithmetic number, because the mean of its divisors is an integer number (1753867284).

Almost surely, 2^30125343440 is an apocalyptic number.

It is an amenable number.

30125343440 is an abundant number, since it is smaller than the sum of its proper divisors (40029347920).

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

30125343440 is a wasteful number, since it uses less digits than its factorization.

30125343440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608979 (or 608973 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 30125343440 its reverse (4434352103), we get a palindrome (34559695543).

The spelling of 30125343440 in words is "thirty billion, one hundred twenty-five million, three hundred forty-three thousand, four hundred forty".