400535545550 has 48 divisors (see below), whose sum is σ = 858958942752. Its totient is φ = 136111180800.

The previous prime is 400535545549. The next prime is 400535545561. The reversal of 400535545550 is 55545535004.

It is a super-2 number, since 2×400535545550² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400535545498 and 400535545507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5024111 + ... + 5103210.

It is an arithmetic number, because the mean of its divisors is an integer number (17894977974).

Almost surely, 2^400535545550 is an apocalyptic number.

400535545550 is an abundant number, since it is smaller than the sum of its proper divisors (458423397202).

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

400535545550 is a wasteful number, since it uses less digits than its factorization.

400535545550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10127453 (or 10127448 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 41.

The spelling of 400535545550 in words is "four hundred billion, five hundred thirty-five million, five hundred forty-five thousand, five hundred fifty".