400253542112040 has 64 divisors (see below), whose sum is σ = 1203388111460160. Its totient is φ = 106500723663360.

The previous prime is 400253542111937. The next prime is 400253542112057. The reversal of 400253542112040 is 40211245352004.

It is a junction number, because it is equal to n+sod(n) for n = 400253542111992 and 400253542112010.

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, 3649229826 + ... + 3649339505.

It is an arithmetic number, because the mean of its divisors is an integer number (18802939241565).

Almost surely, 2^{400253542112040} is an apocalyptic number.

400253542112040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400253542112040 is an abundant number, since it is smaller than the sum of its proper divisors (803134569348120).

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

400253542112040 is a wasteful number, since it uses less digits than its factorization.

400253542112040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298569802 (or 7298569798 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 400253542112040 its reverse (40211245352004), we get a palindrome (440464787464044).

The spelling of 400253542112040 in words is "four hundred trillion, two hundred fifty-three billion, five hundred forty-two million, one hundred twelve thousand, forty".