30693020 has 24 divisors (see below), whose sum is σ = 66679200. Its totient is φ = 11853632.

The previous prime is 30693011. The next prime is 30693023. The reversal of 30693020 is 2039603.

It is a happy number.

It is a super-2 number, since 2×30693020² = 1884122953440800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30693023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25880 + ... + 27039.

It is an arithmetic number, because the mean of its divisors is an integer number (2778300).

Almost surely, 2^30693020 is an apocalyptic number.

It is an amenable number.

30693020 is an abundant number, since it is smaller than the sum of its proper divisors (35986180).

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

30693020 is a wasteful number, since it uses less digits than its factorization.

30693020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52957 (or 52955 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30693020 is about 5540.1281573624. The cubic root of 30693020 is about 313.0976976951.

The spelling of 30693020 in words is "thirty million, six hundred ninety-three thousand, twenty".