30065772 has 48 divisors (see below), whose sum is σ = 78325632. Its totient is φ = 8897280.

The previous prime is 30065767. The next prime is 30065821. The reversal of 30065772 is 27756003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3028 + ... + 8324.

It is an arithmetic number, because the mean of its divisors is an integer number (1631784).

Almost surely, 2^30065772 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 30065772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39162816).

30065772 is an abundant number, since it is smaller than the sum of its proper divisors (48259860).

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

30065772 is a wasteful number, since it uses less digits than its factorization.

30065772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358 (or 5356 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 30065772 is about 5483.2264224633. The cubic root of 30065772 is about 310.9501614012.

It can be divided in two parts, 3006 and 5772, that added together give a palindrome (8778).

The spelling of 30065772 in words is "thirty million, sixty-five thousand, seven hundred seventy-two".