6455490 has 16 divisors (see below), whose sum is σ = 15493248. Its totient is φ = 1721456.

The previous prime is 6455473. The next prime is 6455521. The reversal of 6455490 is 945546.

It is a super-2 number, since 2×6455490² = 83346702280200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107562 + ... + 107621.

It is an arithmetic number, because the mean of its divisors is an integer number (968328).

Almost surely, 2^6455490 is an apocalyptic number.

6455490 is an abundant number, since it is smaller than the sum of its proper divisors (9037758).

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

6455490 is a wasteful number, since it uses less digits than its factorization.

6455490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215193.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 6455490 is about 2540.7656326391. The cubic root of 6455490 is about 186.1985969883.

The spelling of 6455490 in words is "six million, four hundred fifty-five thousand, four hundred ninety".