30280491000 has 192 divisors, whose sum is σ = 102474758880. Its totient is φ = 8064806400.

The previous prime is 30280490983. The next prime is 30280491029. The reversal of 30280491000 is 19408203.

It is a congruent number.

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, 9871467 + ... + 9874533.

Almost surely, 2^30280491000 is an apocalyptic number.

30280491000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30280491000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51237379440).

30280491000 is an abundant number, since it is smaller than the sum of its proper divisors (72194267880).

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

30280491000 is a wasteful number, since it uses less digits than its factorization.

30280491000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191 (or 4174 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 30280491000 its reverse (19408203), we get a palindrome (30299899203).

The spelling of 30280491000 in words is "thirty billion, two hundred eighty million, four hundred ninety-one thousand".