401747968 has 52 divisors (see below), whose sum is σ = 822441928. Its totient is φ = 196116480.

The previous prime is 401747939. The next prime is 401747977. The reversal of 401747968 is 869747104.

It is a super-2 number, since 2×401747968² = 322802859584258048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174988 + ... + 177268.

Almost surely, 2^401747968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401747968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411220964).

401747968 is an abundant number, since it is smaller than the sum of its proper divisors (420693960).

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

401747968 is an equidigital number, since it uses as much as digits as its factorization.

401747968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348 (or 2326 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 401747968 is about 20043.6515635250. The cubic root of 401747968 is about 737.8780016852.

The spelling of 401747968 in words is "four hundred one million, seven hundred forty-seven thousand, nine hundred sixty-eight".