1220710 has 16 divisors (see below), whose sum is σ = 2235600. Its totient is φ = 479776.

The previous prime is 1220699. The next prime is 1220711. The reversal of 1220710 is 170221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445 + ... + 1624.

It is an arithmetic number, because the mean of its divisors is an integer number (139725).

2^1220710 is an apocalyptic number.

1220710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220710 is a deficient number, since it is larger than the sum of its proper divisors (1014890).

1220710 is a wasteful number, since it uses less digits than its factorization.

1220710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 1220710 is about 1104.8574568694. The cubic root of 1220710 is about 106.8736973041.

Adding to 1220710 its reverse (170221), we get a palindrome (1390931).

The spelling of 1220710 in words is "one million, two hundred twenty thousand, seven hundred ten".