6445356 has 24 divisors (see below), whose sum is σ = 15390144. Its totient is φ = 2098320.

The previous prime is 6445319. The next prime is 6445381. The reversal of 6445356 is 6535446.

It is a super-2 number, since 2×6445356² = 83085227933472, which contains 22 as substring.

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, 5730 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (641256).

Almost surely, 2^6445356 is an apocalyptic number.

It is an amenable number.

6445356 is an abundant number, since it is smaller than the sum of its proper divisors (8944788).

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

6445356 is a wasteful number, since it uses less digits than its factorization.

6445356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12541 (or 12539 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 6445356 is about 2538.7705686021. The cubic root of 6445356 is about 186.1011127885.

The spelling of 6445356 in words is "six million, four hundred forty-five thousand, three hundred fifty-six".