1421968682 has 16 divisors (see below), whose sum is σ = 2226518952. Its totient is φ = 680425920.

The previous prime is 1421968651. The next prime is 1421968693. The reversal of 1421968682 is 2868691241.

It is a Cunningham number, because it is equal to 37709²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1272420241 + 149548441 = 35671^2 + 12229^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152993 + ... + 162020.

Almost surely, 2^1421968682 is an apocalyptic number.

1421968682 is a deficient number, since it is larger than the sum of its proper divisors (804550270).

1421968682 is a wasteful number, since it uses less digits than its factorization.

1421968682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315113.

The product of its digits is 331776, while the sum is 47.

The square root of 1421968682 is about 37709.0000132594. Note that the first 4 decimals coincide. The cubic root of 1421968682 is about 1124.5100568146.

The spelling of 1421968682 in words is "one billion, four hundred twenty-one million, nine hundred sixty-eight thousand, six hundred eighty-two".