1320552 has 24 divisors (see below), whose sum is σ = 3576690. Its totient is φ = 440160.

The previous prime is 1320541. The next prime is 1320607. The reversal of 1320552 is 2550231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1285956 + 34596 = 1134^2 + 186^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 9099 + ... + 9242.

2^1320552 is an apocalyptic number.

1320552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320552 is an abundant number, since it is smaller than the sum of its proper divisors (2256138).

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

1320552 is a wasteful number, since it uses less digits than its factorization.

1320552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18353 (or 18346 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1320552 is about 1149.1527313634. The cubic root of 1320552 is about 109.7114198935.

Adding to 1320552 its reverse (2550231), we get a palindrome (3870783).

The spelling of 1320552 in words is "one million, three hundred twenty thousand, five hundred fifty-two".