30260928 has 42 divisors (see below), whose sum is σ = 80267556. Its totient is φ = 10061568.

The previous prime is 30260927. The next prime is 30260953. The reversal of 30260928 is 82906203.

It is a junction number, because it is equal to n+sod(n) for n = 30260895 and 30260904.

It is not an unprimeable number, because it can be changed into a prime (30260921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76026 + ... + 76422.

Almost surely, 2^30260928 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 30260928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40133778).

30260928 is an abundant number, since it is smaller than the sum of its proper divisors (50006628).

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

30260928 is an frugal number, since it uses more digits than its factorization.

30260928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30260928 is about 5500.9933648388. The cubic root of 30260928 is about 311.6215002498.

The spelling of 30260928 in words is "thirty million, two hundred sixty thousand, nine hundred twenty-eight".