401043320 has 32 divisors (see below), whose sum is σ = 933465600. Its totient is φ = 154885248.

The previous prime is 401043289. The next prime is 401043323. The reversal of 401043320 is 23340104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401043323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171704 + ... + 174023.

It is an arithmetic number, because the mean of its divisors is an integer number (29170800).

Almost surely, 2^401043320 is an apocalyptic number.

401043320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401043320 is an abundant number, since it is smaller than the sum of its proper divisors (532422280).

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

401043320 is a wasteful number, since it uses less digits than its factorization.

401043320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345767 (or 345763 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 401043320 is about 20026.0660140728. The cubic root of 401043320 is about 737.4463475285.

Adding to 401043320 its reverse (23340104), we get a palindrome (424383424).

The spelling of 401043320 in words is "four hundred one million, forty-three thousand, three hundred twenty".