30205320450 has 48 divisors (see below), whose sum is σ = 75083158656. Its totient is φ = 8036046400.

The previous prime is 30205320421. The next prime is 30205320461. The reversal of 30205320450 is 5402350203.

It is a super-2 number, since 2×30205320450² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30205320450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168957 + ... + 298256.

It is an arithmetic number, because the mean of its divisors is an integer number (1564232472).

Almost surely, 2^30205320450 is an apocalyptic number.

30205320450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30205320450 is an abundant number, since it is smaller than the sum of its proper divisors (44877838206).

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

30205320450 is a wasteful number, since it uses less digits than its factorization.

30205320450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467659 (or 467654 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 30205320450 its reverse (5402350203), we get a palindrome (35607670653).

The spelling of 30205320450 in words is "thirty billion, two hundred five million, three hundred twenty thousand, four hundred fifty".