1421263016 has 16 divisors (see below), whose sum is σ = 2685212640. Its totient is φ = 705206320.

The previous prime is 1421263007. The next prime is 1421263021. The reversal of 1421263016 is 6103621241.

It is an unprimeable number.

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, 677036 + ... + 679131.

It is an arithmetic number, because the mean of its divisors is an integer number (167825790).

Almost surely, 2^1421263016 is an apocalyptic number.

It is an amenable number.

1421263016 is a deficient number, since it is larger than the sum of its proper divisors (1263949624).

1421263016 is a wasteful number, since it uses less digits than its factorization.

1421263016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356304 (or 1356300 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1421263016 is about 37699.6421203173. The cubic root of 1421263016 is about 1124.3240096287.

Adding to 1421263016 its reverse (6103621241), we get a palindrome (7524884257).

The spelling of 1421263016 in words is "one billion, four hundred twenty-one million, two hundred sixty-three thousand, sixteen".