1220662 has 4 divisors (see below), whose sum is σ = 1830996. Its totient is φ = 610330.

The previous prime is 1220657. The next prime is 1220663. The reversal of 1220662 is 2660221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2660221 = 173 ⋅15377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305164 + ... + 305167.

It is an arithmetic number, because the mean of its divisors is an integer number (457749).

2^1220662 is an apocalyptic number.

1220662 is a deficient number, since it is larger than the sum of its proper divisors (610334).

1220662 is an equidigital number, since it uses as much as digits as its factorization.

1220662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610333.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1220662 is about 1104.8357343967. The cubic root of 1220662 is about 106.8722964787.

Adding to 1220662 its reverse (2660221), we get a palindrome (3880883).

The spelling of 1220662 in words is "one million, two hundred twenty thousand, six hundred sixty-two".