1421616336 has 80 divisors (see below), whose sum is σ = 4208492544. Its totient is φ = 405078912.

The previous prime is 1421616299. The next prime is 1421616341. The reversal of 1421616336 is 6336161241.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1421616297 and 1421616306.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 123165 + ... + 134211.

Almost surely, 2^1421616336 is an apocalyptic number.

1421616336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421616336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104246272).

1421616336 is an abundant number, since it is smaller than the sum of its proper divisors (2786876208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421616336 is a wasteful number, since it uses less digits than its factorization.

1421616336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11448 (or 11442 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 1421616336 is about 37704.3278152522. The cubic root of 1421616336 is about 1124.4171693139.

Adding to 1421616336 its reverse (6336161241), we get a palindrome (7757777577).

The spelling of 1421616336 in words is "one billion, four hundred twenty-one million, six hundred sixteen thousand, three hundred thirty-six".