6409472 has 18 divisors (see below), whose sum is σ = 12794418. Its totient is φ = 3204608.

The previous prime is 6409471. The next prime is 6409483. The reversal of 6409472 is 2749046.

It can be written as a sum of positive squares in only one way, i.e., 5456896 + 952576 = 2336^2 + 976^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁸ + 4⁶ + 0 + 9⁶ + 4¹¹ + 7 + 2³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6409471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12263 + ... + 12774.

It is an arithmetic number, because the mean of its divisors is an integer number (710801).

Almost surely, 2^6409472 is an apocalyptic number.

It is an amenable number.

6409472 is a deficient number, since it is larger than the sum of its proper divisors (6384946).

6409472 is an equidigital number, since it uses as much as digits as its factorization.

6409472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25053 (or 25039 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 6409472 is about 2531.6935043563. The cubic root of 6409472 is about 185.7551022149.

The spelling of 6409472 in words is "six million, four hundred nine thousand, four hundred seventy-two".