30355239020 has 36 divisors (see below), whose sum is σ = 66019974384. Its totient is φ = 11723396160.

The previous prime is 30355239007. The next prime is 30355239053. The reversal of 30355239020 is 2093255303.

It is a super-2 number, since 2×30355239020² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 885536 + ... + 919175.

Almost surely, 2^30355239020 is an apocalyptic number.

It is an amenable number.

30355239020 is an abundant number, since it is smaller than the sum of its proper divisors (35664735364).

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

30355239020 is a wasteful number, since it uses less digits than its factorization.

30355239020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804778 (or 1804747 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 32.

The spelling of 30355239020 in words is "thirty billion, three hundred fifty-five million, two hundred thirty-nine thousand, twenty".