1220274 has 24 divisors (see below), whose sum is σ = 2884752. Its totient is φ = 369720.

The previous prime is 1220257. The next prime is 1220309. The reversal of 1220274 is 4720221.

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

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2884 + ... + 3279.

It is an arithmetic number, because the mean of its divisors is an integer number (120198).

2^1220274 is an apocalyptic number.

1220274 is an abundant number, since it is smaller than the sum of its proper divisors (1664478).

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

1220274 is a wasteful number, since it uses less digits than its factorization.

1220274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182 (or 6179 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1220274 is about 1104.6601287274. The cubic root of 1220274 is about 106.8609717917.

Adding to 1220274 its reverse (4720221), we get a palindrome (5940495).

The spelling of 1220274 in words is "one million, two hundred twenty thousand, two hundred seventy-four".