401035040 has 96 divisors (see below), whose sum is σ = 1088567424. Its totient is φ = 136765440.

The previous prime is 401035039. The next prime is 401035091. The reversal of 401035040 is 40530104.

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, 235472 + ... + 237168.

It is an arithmetic number, because the mean of its divisors is an integer number (11339244).

Almost surely, 2^401035040 is an apocalyptic number.

401035040 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 401035040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544283712).

401035040 is an abundant number, since it is smaller than the sum of its proper divisors (687532384).

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

401035040 is a wasteful number, since it uses less digits than its factorization.

401035040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930 (or 1922 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 401035040 is about 20025.8592824378. The cubic root of 401035040 is about 737.4412723513.

Adding to 401035040 its reverse (40530104), we get a palindrome (441565144).

The spelling of 401035040 in words is "four hundred one million, thirty-five thousand, forty".