1007220 has 24 divisors (see below), whose sum is σ = 2820384. Its totient is φ = 268576.

The previous prime is 1007203. The next prime is 1007231. The reversal of 1007220 is 227001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1007196 and 1007205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8334 + ... + 8453.

It is an arithmetic number, because the mean of its divisors is an integer number (117516).

2^1007220 is an apocalyptic number.

1007220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1007220 is an abundant number, since it is smaller than the sum of its proper divisors (1813164).

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

1007220 is a wasteful number, since it uses less digits than its factorization.

1007220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16799 (or 16797 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 1007220 is about 1003.6035073673. The cubic root of 1007220 is about 100.2400897744.

The spelling of 1007220 in words is "one million, seven thousand, two hundred twenty".