401113040 has 80 divisors (see below), whose sum is σ = 962295552. Its totient is φ = 155407872.

The previous prime is 401113039. The next prime is 401113043. The reversal of 401113040 is 40311104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401113043) 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, 401822 + ... + 402818.

Almost surely, 2^401113040 is an apocalyptic number.

401113040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401113040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481147776).

401113040 is an abundant number, since it is smaller than the sum of its proper divisors (561182512).

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

401113040 is a wasteful number, since it uses less digits than its factorization.

401113040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 401113040 is about 20027.8066697280. The cubic root of 401113040 is about 737.4890792216.

Adding to 401113040 its reverse (40311104), we get a palindrome (441424144).

The spelling of 401113040 in words is "four hundred one million, one hundred thirteen thousand, forty".