389470900 has 144 divisors (see below), whose sum is σ = 1051488256. Its totient is φ = 121927680.

The previous prime is 389470897. The next prime is 389470903. The reversal of 389470900 is 9074983.

It is an interprime number because it is at equal distance from previous prime (389470897) and next prime (389470903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389470903) 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 47 ways as a sum of consecutive naturals, for example, 1155532 + ... + 1155868.

Almost surely, 2^389470900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389470900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525744128).

389470900 is an abundant number, since it is smaller than the sum of its proper divisors (662017356).

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

389470900 is a wasteful number, since it uses less digits than its factorization.

389470900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 389470900 is about 19735.0171015887. The cubic root of 389470900 is about 730.2838078310.

The spelling of 389470900 in words is "three hundred eighty-nine million, four hundred seventy thousand, nine hundred".