1604552 has 8 divisors (see below), whose sum is σ = 3008550. Its totient is φ = 802272.

The previous prime is 1604543. The next prime is 1604557. The reversal of 1604552 is 2554061.

It can be written as a sum of positive squares in only one way, i.e., 1522756 + 81796 = 1234^2 + 286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1604557) 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 as a sum of consecutive naturals, namely, 100277 + ... + 100292.

2^1604552 is an apocalyptic number.

It is an amenable number.

1604552 is a deficient number, since it is larger than the sum of its proper divisors (1403998).

1604552 is a wasteful number, since it uses less digits than its factorization.

1604552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200575 (or 200571 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1604552 is about 1266.7091220955. The cubic root of 1604552 is about 117.0715222470.

The spelling of 1604552 in words is "one million, six hundred four thousand, five hundred fifty-two".