401041240 has 16 divisors (see below), whose sum is σ = 902342880. Its totient is φ = 160416480.

The previous prime is 401041229. The next prime is 401041253. The reversal of 401041240 is 42140104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012976 + ... + 5013055.

It is an arithmetic number, because the mean of its divisors is an integer number (56396430).

Almost surely, 2^401041240 is an apocalyptic number.

401041240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401041240 is an abundant number, since it is smaller than the sum of its proper divisors (501301640).

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

401041240 is a wasteful number, since it uses less digits than its factorization.

401041240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10026042 (or 10026038 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 401041240 is about 20026.0140816888. The cubic root of 401041240 is about 737.4450726113.

Adding to 401041240 its reverse (42140104), we get a palindrome (443181344).

The spelling of 401041240 in words is "four hundred one million, forty-one thousand, two hundred forty".