401241507240 has 128 divisors (see below), whose sum is σ = 1382668911360. Its totient is φ = 91246761984.

The previous prime is 401241507209. The next prime is 401241507263. The reversal of 401241507240 is 42705142104.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 401241507198 and 401241507207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1046877 + ... + 1377836.

It is an arithmetic number, because the mean of its divisors is an integer number (10802100870).

Almost surely, 2^401241507240 is an apocalyptic number.

401241507240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401241507240 is an abundant number, since it is smaller than the sum of its proper divisors (981427404120).

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

401241507240 is a wasteful number, since it uses less digits than its factorization.

401241507240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424931 (or 2424927 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

Adding to 401241507240 its reverse (42705142104), we get a palindrome (443946649344).

The spelling of 401241507240 in words is "four hundred one billion, two hundred forty-one million, five hundred seven thousand, two hundred forty".