1402426 has 8 divisors (see below), whose sum is σ = 2125620. Its totient is φ = 693888.

The previous prime is 1402421. The next prime is 1402439. The reversal of 1402426 is 6242041.

It can be written as a sum of positive squares in 2 ways, for example, as 1243225 + 159201 = 1115^2 + 399^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1402421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3421 + ... + 3808.

2^1402426 is an apocalyptic number.

1402426 is a deficient number, since it is larger than the sum of its proper divisors (723194).

1402426 is an equidigital number, since it uses as much as digits as its factorization.

1402426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7328.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1402426 is about 1184.2406849961. The cubic root of 1402426 is about 111.9334745238.

Adding to 1402426 its reverse (6242041), we get a palindrome (7644467).

The spelling of 1402426 in words is "one million, four hundred two thousand, four hundred twenty-six".