6445192 has 32 divisors (see below), whose sum is σ = 13469400. Its totient is φ = 2870784.

The previous prime is 6445189. The next prime is 6445213. The reversal of 6445192 is 2915446.

It can be written as a sum of positive squares in 4 ways, for example, as 2735716 + 3709476 = 1654^2 + 1926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948 + ... + 4084.

Almost surely, 2^6445192 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 6445192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6734700).

6445192 is an abundant number, since it is smaller than the sum of its proper divisors (7024208).

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

6445192 is a wasteful number, since it uses less digits than its factorization.

6445192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2181 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 6445192 is about 2538.7382692984. The cubic root of 6445192 is about 186.0995343475.

The spelling of 6445192 in words is "six million, four hundred forty-five thousand, one hundred ninety-two".