1421286404 has 12 divisors (see below), whose sum is σ = 2573018700. Its totient is φ = 686138208.

The previous prime is 1421286401. The next prime is 1421286413. The reversal of 1421286404 is 4046821241.

It can be written as a sum of positive squares in 2 ways, for example, as 1062108100 + 359178304 = 32590^2 + 18952^2 .

It is not an unprimeable number, because it can be changed into a prime (1421286401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6126119 + ... + 6126350.

It is an arithmetic number, because the mean of its divisors is an integer number (214418225).

Almost surely, 2^1421286404 is an apocalyptic number.

It is an amenable number.

1421286404 is a deficient number, since it is larger than the sum of its proper divisors (1151732296).

1421286404 is a wasteful number, since it uses less digits than its factorization.

1421286404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12252502 (or 12252500 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1421286404 is about 37699.9523076621. The cubic root of 1421286404 is about 1124.3301768066.

The spelling of 1421286404 in words is "one billion, four hundred twenty-one million, two hundred eighty-six thousand, four hundred four".