1604245 has 8 divisors (see below), whose sum is σ = 1952640. Its totient is φ = 1265040.

The previous prime is 1604243. The next prime is 1604263. The reversal of 1604245 is 5424061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1604245 - 2¹ = 1604243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1905 + ... + 2614.

It is an arithmetic number, because the mean of its divisors is an integer number (244080).

2^1604245 is an apocalyptic number.

It is an amenable number.

1604245 is a deficient number, since it is larger than the sum of its proper divisors (348395).

1604245 is an equidigital number, since it uses as much as digits as its factorization.

1604245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1604245 is about 1266.5879361497. The cubic root of 1604245 is about 117.0640553134.

It can be divided in two parts, 1604 and 245, that added together give a square (1849 = 43²).

The spelling of 1604245 in words is "one million, six hundred four thousand, two hundred forty-five".