1353220 has 24 divisors (see below), whose sum is σ = 3100608. Its totient is φ = 492000.

The previous prime is 1353197. The next prime is 1353221. The reversal of 1353220 is 223531.

It is a junction number, because it is equal to n+sod(n) for n = 1353194 and 1353203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2856 + ... + 3295.

It is an arithmetic number, because the mean of its divisors is an integer number (129192).

2^1353220 is an apocalyptic number.

1353220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1353220 is an abundant number, since it is smaller than the sum of its proper divisors (1747388).

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

1353220 is a wasteful number, since it uses less digits than its factorization.

1353220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171 (or 6169 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1353220 is about 1163.2798459528. The cubic root of 1353220 is about 110.6087461623.

Adding to 1353220 its reverse (223531), we get a palindrome (1576751).

The spelling of 1353220 in words is "one million, three hundred fifty-three thousand, two hundred twenty".