401810304 has 128 divisors (see below), whose sum is σ = 1235162880. Its totient is φ = 113356800.

The previous prime is 401810293. The next prime is 401810363. The reversal of 401810304 is 403018104.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×401810304² = 322903040801144832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222204 + ... + 224004.

It is an arithmetic number, because the mean of its divisors is an integer number (9649710).

Almost surely, 2^401810304 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 401810304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617581440).

401810304 is an abundant number, since it is smaller than the sum of its proper divisors (833352576).

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

401810304 is a wasteful number, since it uses less digits than its factorization.

401810304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 401810304 is about 20045.2065092879. The cubic root of 401810304 is about 737.9161632426.

Adding to 401810304 its reverse (403018104), we get a palindrome (804828408).

The spelling of 401810304 in words is "four hundred one million, eight hundred ten thousand, three hundred four".