389036736 has 224 divisors, whose sum is σ = 1266504960. Its totient is φ = 116121600.

The previous prime is 389036731. The next prime is 389036803. The reversal of 389036736 is 637630983.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 389036691 and 389036700.

It is not an unprimeable number, because it can be changed into a prime (389036731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1843671 + ... + 1843881.

It is an arithmetic number, because the mean of its divisors is an integer number (5654040).

Almost surely, 2^389036736 is an apocalyptic number.

389036736 is a gapful number since it is divisible by the number (36) 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 389036736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633252480).

389036736 is an abundant number, since it is smaller than the sum of its proper divisors (877468224).

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

389036736 is a wasteful number, since it uses less digits than its factorization.

389036736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 389036736 is about 19724.0141958984. The cubic root of 389036736 is about 730.0123448216.

The spelling of 389036736 in words is "three hundred eighty-nine million, thirty-six thousand, seven hundred thirty-six".