389154472 has 48 divisors (see below), whose sum is σ = 868570560. Its totient is φ = 162894816.

The previous prime is 389154443. The next prime is 389154473. The reversal of 389154472 is 274451983.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (389154473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5313 + ... + 28399.

It is an arithmetic number, because the mean of its divisors is an integer number (18095220).

Almost surely, 2^389154472 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 389154472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434285280).

389154472 is an abundant number, since it is smaller than the sum of its proper divisors (479416088).

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

389154472 is a wasteful number, since it uses less digits than its factorization.

389154472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23150 (or 23139 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 389154472 is about 19726.9985552795. The cubic root of 389154472 is about 730.0859797396.

The spelling of 389154472 in words is "three hundred eighty-nine million, one hundred fifty-four thousand, four hundred seventy-two".