400240405413340 has 24 divisors (see below), whose sum is σ = 844728493845600. Its totient is φ = 159291658836288.

The previous prime is 400240405413221. The next prime is 400240405413437. The reversal of 400240405413340 is 43314504042004.

It is a junction number, because it is equal to n+sod(n) for n = 400240405413296 and 400240405413305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50281453987 + ... + 50281461946.

It is an arithmetic number, because the mean of its divisors is an integer number (35197020576900).

Almost surely, 2^{400240405413340} is an apocalyptic number.

It is an amenable number.

400240405413340 is an abundant number, since it is smaller than the sum of its proper divisors (444488088432260).

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

400240405413340 is a wasteful number, since it uses less digits than its factorization.

400240405413340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100562916141 (or 100562916139 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 400240405413340 its reverse (43314504042004), we get a palindrome (443554909455344).

The spelling of 400240405413340 in words is "four hundred trillion, two hundred forty billion, four hundred five million, four hundred thirteen thousand, three hundred forty".