1423402 has 4 divisors (see below), whose sum is σ = 2135106. Its totient is φ = 711700.

The previous prime is 1423399. The next prime is 1423403. The reversal of 1423402 is 2043241.

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

It can be written as a sum of positive squares in only one way, i.e., 962361 + 461041 = 981^2 + 679^2 .

It is not an unprimeable number, because it can be changed into a prime (1423403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355849 + ... + 355852.

2^1423402 is an apocalyptic number.

1423402 is a deficient number, since it is larger than the sum of its proper divisors (711704).

1423402 is an equidigital number, since it uses as much as digits as its factorization.

1423402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711703.

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

The square root of 1423402 is about 1193.0641223337. The cubic root of 1423402 is about 112.4887758349.

Adding to 1423402 its reverse (2043241), we get a palindrome (3466643).

The spelling of 1423402 in words is "one million, four hundred twenty-three thousand, four hundred two".