401440410 has 96 divisors (see below), whose sum is σ = 1203621120. Its totient is φ = 90929664.

The previous prime is 401440387. The next prime is 401440411. The reversal of 401440410 is 14044104.

It is a super-2 number, since 2×401440410² = 322308805561936200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (401440411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68371 + ... + 74009.

It is an arithmetic number, because the mean of its divisors is an integer number (12537720).

Almost surely, 2^401440410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401440410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601810560).

401440410 is an abundant number, since it is smaller than the sum of its proper divisors (802180710).

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

401440410 is a wasteful number, since it uses less digits than its factorization.

401440410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772 (or 5769 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 401440410 is about 20035.9778897862. The cubic root of 401440410 is about 737.6896595433.

Adding to 401440410 its reverse (14044104), we get a palindrome (415484514).

The spelling of 401440410 in words is "four hundred one million, four hundred forty thousand, four hundred ten".