30065628 has 48 divisors (see below), whose sum is σ = 73283616. Its totient is φ = 9584640.

The previous prime is 30065627. The next prime is 30065641. The reversal of 30065628 is 82656003.

It is a super-4 number, since 4×30065628⁴ (a number of 31 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30065595 and 30065604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30065627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25500 + ... + 26652.

It is an arithmetic number, because the mean of its divisors is an integer number (1526742).

Almost surely, 2^30065628 is an apocalyptic number.

It is an amenable number.

30065628 is an abundant number, since it is smaller than the sum of its proper divisors (43217988).

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

30065628 is a wasteful number, since it uses less digits than its factorization.

30065628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 30065628 is about 5483.2132914925. The cubic root of 30065628 is about 310.9496649685.

The spelling of 30065628 in words is "thirty million, sixty-five thousand, six hundred twenty-eight".