1274220 has 36 divisors (see below), whose sum is σ = 3865680. Its totient is φ = 339744.

The previous prime is 1274209. The next prime is 1274227. The reversal of 1274220 is 224721.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 1274193 and 1274202.

It is not an unprimeable number, because it can be changed into a prime (1274227) by changing a digit.

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, 3360 + ... + 3719.

It is an arithmetic number, because the mean of its divisors is an integer number (107380).

2^1274220 is an apocalyptic number.

1274220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1274220 is an abundant number, since it is smaller than the sum of its proper divisors (2591460).

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

1274220 is a wasteful number, since it uses less digits than its factorization.

1274220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094 (or 7089 counting only the distinct ones).

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

The square root of 1274220 is about 1128.8135364178. The cubic root of 1274220 is about 108.4130274871.

Adding to 1274220 its reverse (224721), we get a palindrome (1498941).

The spelling of 1274220 in words is "one million, two hundred seventy-four thousand, two hundred twenty".