30794540 has 72 divisors (see below), whose sum is σ = 76557600. Its totient is φ = 10400544.

The previous prime is 30794513. The next prime is 30794551. The reversal of 30794540 is 4549703.

It is a junction number, because it is equal to n+sod(n) for n = 30794497 and 30794506.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459587 + ... + 459653.

It is an arithmetic number, because the mean of its divisors is an integer number (1063300).

Almost surely, 2^30794540 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 30794540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38278800).

30794540 is an abundant number, since it is smaller than the sum of its proper divisors (45763060).

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

30794540 is an equidigital number, since it uses as much as digits as its factorization.

30794540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 30794540 is about 5549.2828365474. The cubic root of 30794540 is about 313.4425176556.

The spelling of 30794540 in words is "thirty million, seven hundred ninety-four thousand, five hundred forty".