989020285308 has 72 divisors (see below), whose sum is σ = 2737362491136. Its totient is φ = 298597168800.

The previous prime is 989020285277. The next prime is 989020285327. The reversal of 989020285308 is 803582020989.

989020285308 is a `hidden beast` number, since 9 + 89 + 0 + 2 + 0 + 28 + 530 + 8 = 666.

It is a super-2 number, since 2×989020285308² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4500666 + ... + 4715297.

It is an arithmetic number, because the mean of its divisors is an integer number (38018923488).

Almost surely, 2^989020285308 is an apocalyptic number.

It is an amenable number.

989020285308 is an abundant number, since it is smaller than the sum of its proper divisors (1748342205828).

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

989020285308 is a wasteful number, since it uses less digits than its factorization.

989020285308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9216255 (or 9216250 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 989020285308 in words is "nine hundred eighty-nine billion, twenty million, two hundred eighty-five thousand, three hundred eight".