1402243 has 4 divisors (see below), whose sum is σ = 1423240. Its totient is φ = 1381248.

The previous prime is 1402231. The next prime is 1402249. The reversal of 1402243 is 3422041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402243 is a prime.

It is a Duffinian number.

1402243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1402249) 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, 10398 + ... + 10531.

It is an arithmetic number, because the mean of its divisors is an integer number (355810).

2^1402243 is an apocalyptic number.

1402243 is a deficient number, since it is larger than the sum of its proper divisors (20997).

1402243 is an equidigital number, since it uses as much as digits as its factorization.

1402243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20996.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1402243 is about 1184.1634177764. The cubic root of 1402243 is about 111.9286056473.

Adding to 1402243 its reverse (3422041), we get a palindrome (4824284).

The spelling of 1402243 in words is "one million, four hundred two thousand, two hundred forty-three".