30985239450 has 96 divisors (see below), whose sum is σ = 85250257920. Its totient is φ = 7384235200.

The previous prime is 30985239421. The next prime is 30985239473. The reversal of 30985239450 is 5493258903.

It is a self number, because there is not a number n which added to its sum of digits gives 30985239450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61794 + ... + 256493.

It is an arithmetic number, because the mean of its divisors is an integer number (888023520).

Almost surely, 2^30985239450 is an apocalyptic number.

30985239450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30985239450 is an abundant number, since it is smaller than the sum of its proper divisors (54265018470).

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

30985239450 is a wasteful number, since it uses less digits than its factorization.

30985239450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318372 (or 318367 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 30985239450 in words is "thirty billion, nine hundred eighty-five million, two hundred thirty-nine thousand, four hundred fifty".