389514288 has 80 divisors (see below), whose sum is σ = 1062590720. Its totient is φ = 122611968.

The previous prime is 389514259. The next prime is 389514311. The reversal of 389514288 is 882415983.

It is a super-2 number, since 2×389514288² = 303442761112293888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443706 + ... + 444582.

It is an arithmetic number, because the mean of its divisors is an integer number (13282384).

Almost surely, 2^389514288 is an apocalyptic number.

389514288 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389514288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531295360).

389514288 is an abundant number, since it is smaller than the sum of its proper divisors (673076432).

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

389514288 is a wasteful number, since it uses less digits than its factorization.

389514288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1388 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 389514288 is about 19736.1163352874. The cubic root of 389514288 is about 730.3109252847.

The spelling of 389514288 in words is "three hundred eighty-nine million, five hundred fourteen thousand, two hundred eighty-eight".