1600445 has 16 divisors (see below), whose sum is σ = 2395008. Its totient is φ = 997440.

The previous prime is 1600433. The next prime is 1600451. The reversal of 1600445 is 5440061.

It is a happy number.

It is not a de Polignac number, because 1600445 - 2¹⁰ = 1599421 is a prime.

It is a super-2 number, since 2×1600445² = 5122848396050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (149688).

2^1600445 is an apocalyptic number.

It is an amenable number.

1600445 is a deficient number, since it is larger than the sum of its proper divisors (794563).

1600445 is a wasteful number, since it uses less digits than its factorization.

1600445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1600445 is about 1265.0869535332. The cubic root of 1600445 is about 116.9715517559.

The spelling of 1600445 in words is "one million, six hundred thousand, four hundred forty-five".