8402445 has 24 divisors (see below), whose sum is σ = 14807832. Its totient is φ = 4406400.

The previous prime is 8402419. The next prime is 8402453. The reversal of 8402445 is 5442048.

It can be written as a sum of positive squares in 4 ways, for example, as 751689 + 7650756 = 867^2 + 2766^2 .

It is not a de Polignac number, because 8402445 - 2⁵ = 8402413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1215 + ... + 4275.

It is an arithmetic number, because the mean of its divisors is an integer number (616993).

Almost surely, 2^8402445 is an apocalyptic number.

It is an amenable number.

8402445 is a deficient number, since it is larger than the sum of its proper divisors (6405387).

8402445 is a wasteful number, since it uses less digits than its factorization.

8402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133 (or 3130 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 8402445 is about 2898.6971211218. The cubic root of 8402445 is about 203.2989923790.

The spelling of 8402445 in words is "eight million, four hundred two thousand, four hundred forty-five".