30734080 has 72 divisors (see below), whose sum is σ = 79323552. Its totient is φ = 11341824.

The previous prime is 30734071. The next prime is 30734089. The reversal of 30734080 is 8043703.

It is an interprime number because it is at equal distance from previous prime (30734071) and next prime (30734089).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30734089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15717 + ... + 17563.

It is an arithmetic number, because the mean of its divisors is an integer number (1101716).

Almost surely, 2^30734080 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 30734080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39661776).

30734080 is an abundant number, since it is smaller than the sum of its proper divisors (48589472).

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

30734080 is a wasteful number, since it uses less digits than its factorization.

30734080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 30734080 is about 5543.8326093056. The cubic root of 30734080 is about 313.2372523675.

Adding to 30734080 its reverse (8043703), we get a palindrome (38777783).

The spelling of 30734080 in words is "thirty million, seven hundred thirty-four thousand, eighty".