1396220 has 24 divisors (see below), whose sum is σ = 3351264. Its totient is φ = 478656.

The previous prime is 1396217. The next prime is 1396223. The reversal of 1396220 is 226931.

It is an interprime number because it is at equal distance from previous prime (1396217) and next prime (1396223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396223) by changing a digit.

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, 4847 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (139636).

2^1396220 is an apocalyptic number.

1396220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1396220 is an abundant number, since it is smaller than the sum of its proper divisors (1955044).

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

1396220 is a wasteful number, since it uses less digits than its factorization.

1396220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9989 (or 9987 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1396220 is about 1181.6175354149. The cubic root of 1396220 is about 111.7681214534.

The spelling of 1396220 in words is "one million, three hundred ninety-six thousand, two hundred twenty".