6390732 has 12 divisors (see below), whose sum is σ = 14911736. Its totient is φ = 2130240.

The previous prime is 6390721. The next prime is 6390733. The reversal of 6390732 is 2370936.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6390732.

It is not an unprimeable number, because it can be changed into a prime (6390733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266269 + ... + 266292.

Almost surely, 2^6390732 is an apocalyptic number.

It is an amenable number.

6390732 is an abundant number, since it is smaller than the sum of its proper divisors (8521004).

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

6390732 is a wasteful number, since it uses less digits than its factorization.

6390732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532568 (or 532566 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 6390732 is about 2527.9897151690. The cubic root of 6390732 is about 185.5738887043.

The spelling of 6390732 in words is "six million, three hundred ninety thousand, seven hundred thirty-two".