1401080816 has 20 divisors (see below), whose sum is σ = 2715189312. Its totient is φ = 700386816.

The previous prime is 1401080803. The next prime is 1401080833. The reversal of 1401080816 is 6180801041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113441 + ... + 125183.

Almost surely, 2^1401080816 is an apocalyptic number.

1401080816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1401080816 is a deficient number, since it is larger than the sum of its proper divisors (1314108496).

1401080816 is a wasteful number, since it uses less digits than its factorization.

1401080816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19208 (or 19202 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1401080816 is about 37431.0140925944. The cubic root of 1401080816 is about 1118.9767482470.

Adding to 1401080816 its reverse (6180801041), we get a palindrome (7581881857).

The spelling of 1401080816 in words is "one billion, four hundred one million, eighty thousand, eight hundred sixteen".