1220562 has 32 divisors (see below), whose sum is σ = 3100800. Its totient is φ = 348624.

The previous prime is 1220507. The next prime is 1220591. The reversal of 1220562 is 2650221.

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 15 ways as a sum of consecutive naturals, for example, 1237 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (96900).

2^1220562 is an apocalyptic number.

1220562 is an abundant number, since it is smaller than the sum of its proper divisors (1880238).

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

1220562 is a wasteful number, since it uses less digits than its factorization.

1220562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247 (or 3241 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1220562 is about 1104.7904778735. The cubic root of 1220562 is about 106.8693779745.

Adding to 1220562 its reverse (2650221), we get a palindrome (3870783).

The spelling of 1220562 in words is "one million, two hundred twenty thousand, five hundred sixty-two".