30755020 has 12 divisors (see below), whose sum is σ = 64585584. Its totient is φ = 12302000.

The previous prime is 30755009. The next prime is 30755027. The reversal of 30755020 is 2055703.

It is a junction number, because it is equal to n+sod(n) for n = 30754982 and 30755000.

It is not an unprimeable number, because it can be changed into a prime (30755027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768856 + ... + 768895.

It is an arithmetic number, because the mean of its divisors is an integer number (5382132).

Almost surely, 2^30755020 is an apocalyptic number.

It is an amenable number.

30755020 is an abundant number, since it is smaller than the sum of its proper divisors (33830564).

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

30755020 is a wasteful number, since it uses less digits than its factorization.

30755020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537760 (or 1537758 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 30755020 is about 5545.7208728893. The cubic root of 30755020 is about 313.3083753573.

The spelling of 30755020 in words is "thirty million, seven hundred fifty-five thousand, twenty".