1220752 has 20 divisors (see below), whose sum is σ = 2547580. Its totient is φ = 563328.

The previous prime is 1220743. The next prime is 1220761. The reversal of 1220752 is 2570221.

It is an interprime number because it is at equal distance from previous prime (1220743) and next prime (1220761).

It can be written as a sum of positive squares in 2 ways, for example, as 147456 + 1073296 = 384^2 + 1036^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2727 + ... + 3142.

It is an arithmetic number, because the mean of its divisors is an integer number (127379).

2^1220752 is an apocalyptic number.

It is an amenable number.

1220752 is an abundant number, since it is smaller than the sum of its proper divisors (1326828).

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

1220752 is a wasteful number, since it uses less digits than its factorization.

1220752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890 (or 5884 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1220752 is about 1104.8764636827. The cubic root of 1220752 is about 106.8749229962.

Adding to 1220752 its reverse (2570221), we get a palindrome (3790973).

The spelling of 1220752 in words is "one million, two hundred twenty thousand, seven hundred fifty-two".