1402423 has 4 divisors (see below), whose sum is σ = 1529928. Its totient is φ = 1274920.

The previous prime is 1402421. The next prime is 1402439. The reversal of 1402423 is 3242041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3242041 = 11 ⋅294731.

It is a cyclic number.

It is not a de Polignac number, because 1402423 - 2¹ = 1402421 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 1402397 and 1402406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402421) 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, 63736 + ... + 63757.

It is an arithmetic number, because the mean of its divisors is an integer number (382482).

2^1402423 is an apocalyptic number.

1402423 is a deficient number, since it is larger than the sum of its proper divisors (127505).

1402423 is a wasteful number, since it uses less digits than its factorization.

1402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127504.

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

The square root of 1402423 is about 1184.2394183610. The cubic root of 1402423 is about 111.9333947096.

Adding to 1402423 its reverse (3242041), we get a palindrome (4644464).

The spelling of 1402423 in words is "one million, four hundred two thousand, four hundred twenty-three".