30235820 has 12 divisors (see below), whose sum is σ = 63495264. Its totient is φ = 12094320.

The previous prime is 30235813. The next prime is 30235841. The reversal of 30235820 is 2853203.

It is a super-2 number, since 2×30235820² = 1828409622144800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755876 + ... + 755915.

It is an arithmetic number, because the mean of its divisors is an integer number (5291272).

Almost surely, 2^30235820 is an apocalyptic number.

It is an amenable number.

30235820 is an abundant number, since it is smaller than the sum of its proper divisors (33259444).

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

30235820 is a wasteful number, since it uses less digits than its factorization.

30235820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511800 (or 1511798 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30235820 is about 5498.7107579868. The cubic root of 30235820 is about 311.5352905387.

The spelling of 30235820 in words is "thirty million, two hundred thirty-five thousand, eight hundred twenty".