1282631326 has 16 divisors (see below), whose sum is σ = 1963669680. Its totient is φ = 628153920.

The previous prime is 1282631321. The next prime is 1282631327. The reversal of 1282631326 is 6231362821.

It is a junction number, because it is equal to n+sod(n) for n = 1282631291 and 1282631300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1282631321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13066 + ... + 52306.

It is an arithmetic number, because the mean of its divisors is an integer number (122729355).

Almost surely, 2^1282631326 is an apocalyptic number.

1282631326 is a deficient number, since it is larger than the sum of its proper divisors (681038354).

1282631326 is a wasteful number, since it uses less digits than its factorization.

1282631326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39579.

The product of its digits is 20736, while the sum is 34.

The square root of 1282631326 is about 35813.8426589496. The cubic root of 1282631326 is about 1086.5105496468.

The spelling of 1282631326 in words is "one billion, two hundred eighty-two million, six hundred thirty-one thousand, three hundred twenty-six".