401216768 has 36 divisors (see below), whose sum is σ = 843027360. Its totient is φ = 190047744.

The previous prime is 401216759. The next prime is 401216773. The reversal of 401216768 is 867612104.

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, 36380 + ... + 46107.

Almost surely, 2^401216768 is an apocalyptic number.

It is an amenable number.

401216768 is an abundant number, since it is smaller than the sum of its proper divisors (441810592).

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

401216768 is an equidigital number, since it uses as much as digits as its factorization.

401216768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82522 (or 82508 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 401216768 is about 20030.3961019247. The cubic root of 401216768 is about 737.5526454040.

The spelling of 401216768 in words is "four hundred one million, two hundred sixteen thousand, seven hundred sixty-eight".