30898480 has 40 divisors (see below), whose sum is σ = 72763200. Its totient is φ = 12200448.

The previous prime is 30898451. The next prime is 30898481. The reversal of 30898480 is 8489803.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (30898481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3876 + ... + 8764.

It is an arithmetic number, because the mean of its divisors is an integer number (1819080).

Almost surely, 2^30898480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30898480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36381600).

30898480 is an abundant number, since it is smaller than the sum of its proper divisors (41864720).

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

30898480 is a wasteful number, since it uses less digits than its factorization.

30898480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4981 (or 4975 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 30898480 is about 5558.6401214686. The cubic root of 30898480 is about 313.7947730584.

The spelling of 30898480 in words is "thirty million, eight hundred ninety-eight thousand, four hundred eighty".