1609552 has 30 divisors (see below), whose sum is σ = 3629418. Its totient is φ = 689472.

The previous prime is 1609549. The next prime is 1609561. The reversal of 1609552 is 2559061.

It can be written as a sum of positive squares in only one way, i.e., 1382976 + 226576 = 1176^2 + 476^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1609552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243 + ... + 1810.

2^1609552 is an apocalyptic number.

It is an amenable number.

1609552 is an abundant number, since it is smaller than the sum of its proper divisors (2019866).

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

1609552 is a wasteful number, since it uses less digits than its factorization.

1609552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075 (or 2062 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1609552 is about 1268.6812050314. The cubic root of 1609552 is about 117.1929996945.

The spelling of 1609552 in words is "one million, six hundred nine thousand, five hundred fifty-two".