6405472 has 12 divisors (see below), whose sum is σ = 12610836. Its totient is φ = 3202720.

The previous prime is 6405463. The next prime is 6405473. The reversal of 6405472 is 2745046.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6405472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100054 + ... + 100117.

It is an arithmetic number, because the mean of its divisors is an integer number (1050903).

Almost surely, 2^6405472 is an apocalyptic number.

It is an amenable number.

6405472 is a deficient number, since it is larger than the sum of its proper divisors (6205364).

6405472 is a wasteful number, since it uses less digits than its factorization.

6405472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200181 (or 200173 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 6405472 is about 2530.9033960229. The cubic root of 6405472 is about 185.7164523839.

The spelling of 6405472 in words is "six million, four hundred five thousand, four hundred seventy-two".