1662544 has 20 divisors (see below), whose sum is σ = 3469396. Its totient is φ = 767232.

The previous prime is 1662527. The next prime is 1662547. The reversal of 1662544 is 4452661.

It can be written as a sum of positive squares in 2 ways, for example, as 193600 + 1468944 = 440^2 + 1212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789 + ... + 4204.

2^1662544 is an apocalyptic number.

It is an amenable number.

1662544 is an abundant number, since it is smaller than the sum of its proper divisors (1806852).

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

1662544 is a wasteful number, since it uses less digits than its factorization.

1662544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014 (or 8008 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 1662544 is about 1289.3967581780. The cubic root of 1662544 is about 118.4652701965.

The spelling of 1662544 in words is "one million, six hundred sixty-two thousand, five hundred forty-four".