1342720 has 36 divisors (see below), whose sum is σ = 3219300. Its totient is φ = 536576.

The previous prime is 1342699. The next prime is 1342723. The reversal of 1342720 is 272431.

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 451584 = 944^2 + 672^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756 + ... + 1804.

It is an arithmetic number, because the mean of its divisors is an integer number (89425).

2^1342720 is an apocalyptic number.

1342720 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 1342720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609650).

1342720 is an abundant number, since it is smaller than the sum of its proper divisors (1876580).

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

1342720 is an equidigital number, since it uses as much as digits as its factorization.

1342720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1342720 is about 1158.7579557440. The cubic root of 1342720 is about 110.3219219697.

The spelling of 1342720 in words is "one million, three hundred forty-two thousand, seven hundred twenty".