30780596 has 72 divisors (see below), whose sum is σ = 69967296. Its totient is φ = 11508480.

The previous prime is 30780587. The next prime is 30780599. The reversal of 30780596 is 69508703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30780599) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421616 + ... + 421688.

It is an arithmetic number, because the mean of its divisors is an integer number (971768).

Almost surely, 2^30780596 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 30780596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34983648).

30780596 is an abundant number, since it is smaller than the sum of its proper divisors (39186700).

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

30780596 is a wasteful number, since it uses less digits than its factorization.

30780596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 30780596 is about 5548.0263157271. The cubic root of 30780596 is about 313.3952008010.

The spelling of 30780596 in words is "thirty million, seven hundred eighty thousand, five hundred ninety-six".