6468990 has 32 divisors (see below), whose sum is σ = 16937856. Its totient is φ = 1568160.

The previous prime is 6468983. The next prime is 6468997. The reversal of 6468990 is 998646.

It is an interprime number because it is at equal distance from previous prime (6468983) and next prime (6468997).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6468997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9472 + ... + 10131.

It is an arithmetic number, because the mean of its divisors is an integer number (529308).

Almost surely, 2^6468990 is an apocalyptic number.

6468990 is an abundant number, since it is smaller than the sum of its proper divisors (10468866).

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

6468990 is a wasteful number, since it uses less digits than its factorization.

6468990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19624.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 6468990 is about 2543.4209246603. The cubic root of 6468990 is about 186.3283021360.

It can be divided in two parts, 6 and 468990, that added together give a triangular number (468996 = T₉₆₈).

The spelling of 6468990 in words is "six million, four hundred sixty-eight thousand, nine hundred ninety".