401358916 has 48 divisors (see below), whose sum is σ = 855792000. Its totient is φ = 160777728.

The previous prime is 401358913. The next prime is 401358929. The reversal of 401358916 is 619853104.

It is a super-2 number, since 2×401358916² = 322177958905390112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401358913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68095 + ... + 73753.

It is an arithmetic number, because the mean of its divisors is an integer number (17829000).

Almost surely, 2^401358916 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 401358916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427896000).

401358916 is an abundant number, since it is smaller than the sum of its proper divisors (454433084).

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

401358916 is a wasteful number, since it uses less digits than its factorization.

401358916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5836 (or 5834 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 401358916 is about 20033.9440949604. The cubic root of 401358916 is about 737.6397381867.

The spelling of 401358916 in words is "four hundred one million, three hundred fifty-eight thousand, nine hundred sixteen".