389289424100 has 36 divisors (see below), whose sum is σ = 844794125028. Its totient is φ = 155709120000.

The previous prime is 389289424081. The next prime is 389289424133. The reversal of 389289424100 is 1424982983.

It can be written as a sum of positive squares in 6 ways, for example, as 29953917184 + 359335506916 = 173072^2 + 599446^2 .

It is a super-2 number, since 2×389289424100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2751080 + ... + 2889120.

It is an arithmetic number, because the mean of its divisors is an integer number (23466503473).

Almost surely, 2^389289424100 is an apocalyptic number.

It is an amenable number.

389289424100 is an abundant number, since it is smaller than the sum of its proper divisors (455504700928).

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

389289424100 is a wasteful number, since it uses less digits than its factorization.

389289424100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166256 (or 166249 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 389289424100 in words is "three hundred eighty-nine billion, two hundred eighty-nine million, four hundred twenty-four thousand, one hundred".