6432880 has 40 divisors (see below), whose sum is σ = 15070464. Its totient is φ = 2553600.

The previous prime is 6432869. The next prime is 6432889. The reversal of 6432880 is 882346.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6432889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15070 + ... + 15490.

Almost surely, 2^6432880 is an apocalyptic number.

It is an amenable number.

6432880 is an abundant number, since it is smaller than the sum of its proper divisors (8637584).

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

6432880 is a wasteful number, since it uses less digits than its factorization.

6432880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 6432880 is about 2536.3122836118. The cubic root of 6432880 is about 185.9809592410.

The spelling of 6432880 in words is "six million, four hundred thirty-two thousand, eight hundred eighty".