389429760 has 80 divisors (see below), whose sum is σ = 1244982816. Its totient is φ = 103845888.

The previous prime is 389429741. The next prime is 389429771. The reversal of 389429760 is 67924983.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17674 + ... + 33033.

Almost surely, 2^389429760 is an apocalyptic number.

389429760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389429760 is an abundant number, since it is smaller than the sum of its proper divisors (855553056).

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

389429760 is an equidigital number, since it uses as much as digits as its factorization.

389429760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50733 (or 50717 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 389429760 is about 19733.9747643499. The cubic root of 389429760 is about 730.2580935147.

The spelling of 389429760 in words is "three hundred eighty-nine million, four hundred twenty-nine thousand, seven hundred sixty".