30072708 has 42 divisors (see below), whose sum is σ = 78912414. Its totient is φ = 10023264.

The previous prime is 30072683. The next prime is 30072709. The reversal of 30072708 is 80727003.

It can be written as a sum of positive squares in only one way, i.e., 24681024 + 5391684 = 4968^2 + 2322^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30072709) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2241 + ... + 8072.

It is an arithmetic number, because the mean of its divisors is an integer number (1878867).

Almost surely, 2^30072708 is an apocalyptic number.

It is an amenable number.

30072708 is an abundant number, since it is smaller than the sum of its proper divisors (48839706).

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

30072708 is a wasteful number, since it uses less digits than its factorization.

30072708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10335 (or 10318 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 30072708 is about 5483.8588603282. The cubic root of 30072708 is about 310.9740710316.

The spelling of 30072708 in words is "thirty million, seventy-two thousand, seven hundred eight".