1350420 has 48 divisors (see below), whose sum is σ = 3846528. Its totient is φ = 353920.

The previous prime is 1350403. The next prime is 1350449. The reversal of 1350420 is 240531.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1350420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4102 + ... + 4418.

It is an arithmetic number, because the mean of its divisors is an integer number (80136).

2^1350420 is an apocalyptic number.

1350420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1350420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923264).

1350420 is an abundant number, since it is smaller than the sum of its proper divisors (2496108).

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

1350420 is a wasteful number, since it uses less digits than its factorization.

1350420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1350420 is about 1162.0757290297. The cubic root of 1350420 is about 110.5324052022.

Adding to 1350420 its reverse (240531), we get a palindrome (1590951).

It can be divided in two parts, 1350 and 420, that added together give a triangular number (1770 = T₅₉).

The spelling of 1350420 in words is "one million, three hundred fifty thousand, four hundred twenty".