30893240 has 64 divisors (see below), whose sum is σ = 83635200. Its totient is φ = 10032768.

The previous prime is 30893201. The next prime is 30893263. The reversal of 30893240 is 4239803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2417 + ... + 8223.

It is an arithmetic number, because the mean of its divisors is an integer number (1306800).

Almost surely, 2^30893240 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 30893240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41817600).

30893240 is an abundant number, since it is smaller than the sum of its proper divisors (52741960).

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

30893240 is a wasteful number, since it uses less digits than its factorization.

30893240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5844 (or 5840 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30893240 is about 5558.1687631809. The cubic root of 30893240 is about 313.7770334849. Note that the first 3 decimals are identical.

The spelling of 30893240 in words is "thirty million, eight hundred ninety-three thousand, two hundred forty".