20830700388 has 24 divisors (see below), whose sum is σ = 51163124320. Its totient is φ = 6578115840.

The previous prime is 20830700381. The next prime is 20830700393. The reversal of 20830700388 is 88300703802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20830700381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45681133 + ... + 45681588.

Almost surely, 2^20830700388 is an apocalyptic number.

It is an amenable number.

20830700388 is an abundant number, since it is smaller than the sum of its proper divisors (30332423932).

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

20830700388 is a wasteful number, since it uses less digits than its factorization.

20830700388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91362747 (or 91362745 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 20830700388 in words is "twenty billion, eight hundred thirty million, seven hundred thousand, three hundred eighty-eight".