1426631 has 8 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 1385208.

The previous prime is 1426627. The next prime is 1426643. The reversal of 1426631 is 1366241.

It is a happy number.

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 1426631 - 2² = 1426627 is a prime.

It is a super-2 number, since 2×1426631² = 4070552020322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1426597 and 1426606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426231) 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 7 ways as a sum of consecutive naturals, for example, 7070 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2^1426631 is an apocalyptic number.

1426631 is a deficient number, since it is larger than the sum of its proper divisors (42169).

1426631 is a wasteful number, since it uses less digits than its factorization.

1426631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373.

The product of its digits is 864, while the sum is 23.

The square root of 1426631 is about 1194.4165939906. The cubic root of 1426631 is about 112.5737721892.

The spelling of 1426631 in words is "one million, four hundred twenty-six thousand, six hundred thirty-one".