30890484 has 60 divisors (see below), whose sum is σ = 82016704. Its totient is φ = 10136016.

The previous prime is 30890459. The next prime is 30890521. The reversal of 30890484 is 48409803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20997 + ... + 22419.

Almost surely, 2^30890484 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 30890484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41008352).

30890484 is an abundant number, since it is smaller than the sum of its proper divisors (51126220).

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

30890484 is a wasteful number, since it uses less digits than its factorization.

30890484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 30890484 is about 5557.9208342689. The cubic root of 30890484 is about 313.7677024768.

The spelling of 30890484 in words is "thirty million, eight hundred ninety thousand, four hundred eighty-four".