1340293 has 8 divisors (see below), whose sum is σ = 1402200. Its totient is φ = 1279488.

The previous prime is 1340291. The next prime is 1340321. The reversal of 1340293 is 3920431.

It can be written as a sum of positive squares in 4 ways, for example, as 134689 + 1205604 = 367^2 + 1098^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340293 - 2¹ = 1340291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340291) 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, 3073 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (175275).

2^1340293 is an apocalyptic number.

It is an amenable number.

1340293 is a deficient number, since it is larger than the sum of its proper divisors (61907).

1340293 is a wasteful number, since it uses less digits than its factorization.

1340293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1340293 is about 1157.7102400860. The cubic root of 1340293 is about 110.2554120025.

The spelling of 1340293 in words is "one million, three hundred forty thousand, two hundred ninety-three".