30080736 has 144 divisors (see below), whose sum is σ = 100324224. Its totient is φ = 8370432.

The previous prime is 30080731. The next prime is 30080759. The reversal of 30080736 is 63708003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30080731) 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, 86515 + ... + 86861.

It is an arithmetic number, because the mean of its divisors is an integer number (696696).

Almost surely, 2^30080736 is an apocalyptic number.

30080736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30080736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50162112).

30080736 is an abundant number, since it is smaller than the sum of its proper divisors (70243488).

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

30080736 is a wasteful number, since it uses less digits than its factorization.

30080736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30080736 is about 5484.5907778065. The cubic root of 30080736 is about 311.0017403913.

Adding to 30080736 its reverse (63708003), we get a palindrome (93788739).

The spelling of 30080736 in words is "thirty million, eighty thousand, seven hundred thirty-six".