401216115040 has 96 divisors (see below), whose sum is σ = 1020935603520. Its totient is φ = 148119681024.

The previous prime is 401216115011. The next prime is 401216115059. The reversal of 401216115040 is 40511612104.

It is a junction number, because it is equal to n+sod(n) for n = 401216114996 and 401216115014.

It is a congruent number.

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, 24279901 + ... + 24296419.

It is an arithmetic number, because the mean of its divisors is an integer number (10634745870).

Almost surely, 2^401216115040 is an apocalyptic number.

401216115040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401216115040 is an abundant number, since it is smaller than the sum of its proper divisors (619719488480).

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

401216115040 is a wasteful number, since it uses less digits than its factorization.

401216115040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28224 (or 28216 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 401216115040 its reverse (40511612104), we get a palindrome (441727727144).

The spelling of 401216115040 in words is "four hundred one billion, two hundred sixteen million, one hundred fifteen thousand, forty".