389283640 has 16 divisors (see below), whose sum is σ = 875888280. Its totient is φ = 155713440.

The previous prime is 389283607. The next prime is 389283649. The reversal of 389283640 is 46382983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389283649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4866006 + ... + 4866085.

Almost surely, 2^389283640 is an apocalyptic number.

It is an amenable number.

389283640 is an abundant number, since it is smaller than the sum of its proper divisors (486604640).

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

389283640 is a wasteful number, since it uses less digits than its factorization.

389283640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9732102 (or 9732098 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 389283640 is about 19730.2721724765. The cubic root of 389283640 is about 730.1667474217.

The spelling of 389283640 in words is "three hundred eighty-nine million, two hundred eighty-three thousand, six hundred forty".