30694340 has 36 divisors (see below), whose sum is σ = 66646188. Its totient is φ = 11874240.

The previous prime is 30694319. The next prime is 30694343. The reversal of 30694340 is 4349603.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8491396 + 22202944 = 2914^2 + 4712^2 .

It is not an unprimeable number, because it can be changed into a prime (30694343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18422 + ... + 20018.

It is an arithmetic number, because the mean of its divisors is an integer number (1851283).

Almost surely, 2^30694340 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 30694340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33323094).

30694340 is an abundant number, since it is smaller than the sum of its proper divisors (35951848).

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

30694340 is a wasteful number, since it uses less digits than its factorization.

30694340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 30694340 is about 5540.2472868997. The cubic root of 30694340 is about 313.1021860449.

The spelling of 30694340 in words is "thirty million, six hundred ninety-four thousand, three hundred forty".