6447460 has 48 divisors (see below), whose sum is σ = 14595840. Its totient is φ = 2391264.

The previous prime is 6447457. The next prime is 6447533. The reversal of 6447460 is 647446.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137157 + ... + 137203.

It is an arithmetic number, because the mean of its divisors is an integer number (304080).

Almost surely, 2^6447460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6447460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7297920).

6447460 is an abundant number, since it is smaller than the sum of its proper divisors (8148380).

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

6447460 is a wasteful number, since it uses less digits than its factorization.

6447460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 6447460 is about 2539.1849085878. The cubic root of 6447460 is about 186.1213606560.

It can be divided in two parts, 64 and 47460, that added together give a square (47524 = 218²).

The spelling of 6447460 in words is "six million, four hundred forty-seven thousand, four hundred sixty".