401103864 has 96 divisors (see below), whose sum is σ = 1244305920. Its totient is φ = 114343488.

The previous prime is 401103863. The next prime is 401103869. The reversal of 401103864 is 468301104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401103863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414309 + ... + 415275.

It is an arithmetic number, because the mean of its divisors is an integer number (12961520).

Almost surely, 2^401103864 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 401103864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622152960).

401103864 is an abundant number, since it is smaller than the sum of its proper divisors (843202056).

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

401103864 is a wasteful number, since it uses less digits than its factorization.

401103864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 401103864 is about 20027.5775869175. The cubic root of 401103864 is about 737.4834554940.

Adding to 401103864 its reverse (468301104), we get a palindrome (869404968).

The spelling of 401103864 in words is "four hundred one million, one hundred three thousand, eight hundred sixty-four".