30740056 has 8 divisors (see below), whose sum is σ = 57637620. Its totient is φ = 15370024.

The previous prime is 30740051. The next prime is 30740117. The reversal of 30740056 is 65004703.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 30740056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30740051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1921246 + ... + 1921261.

Almost surely, 2^30740056 is an apocalyptic number.

It is an amenable number.

30740056 is a deficient number, since it is larger than the sum of its proper divisors (26897564).

30740056 is a wasteful number, since it uses less digits than its factorization.

30740056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842513 (or 3842509 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 30740056 is about 5544.3715604205. The cubic root of 30740056 is about 313.2575532247.

Adding to 30740056 its reverse (65004703), we get a palindrome (95744759).

The spelling of 30740056 in words is "thirty million, seven hundred forty thousand, fifty-six".