6451488 has 120 divisors (see below), whose sum is σ = 20124720. Its totient is φ = 2021760.

The previous prime is 6451481. The next prime is 6451499. The reversal of 6451488 is 8841546.

6451488 is a `hidden beast` number, since 64 + 514 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6451481) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49183 + ... + 49313.

It is an arithmetic number, because the mean of its divisors is an integer number (167706).

Almost surely, 2^6451488 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 6451488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10062360).

6451488 is an abundant number, since it is smaller than the sum of its proper divisors (13673232).

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

6451488 is a wasteful number, since it uses less digits than its factorization.

6451488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 155 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 6451488 is about 2539.9779526602. The cubic root of 6451488 is about 186.1601118734.

The spelling of 6451488 in words is "six million, four hundred fifty-one thousand, four hundred eighty-eight".