455021405152240 has 40 divisors (see below), whose sum is σ = 1058202949323888. Its totient is φ = 181960702732800.

The previous prime is 455021405152231. The next prime is 455021405152243. The reversal of 455021405152240 is 42251504120554.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 455021405152193 and 455021405152202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455021405152243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747495861 + ... + 748104340.

Almost surely, 2^{455021405152240} is an apocalyptic number.

455021405152240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455021405152240 is an abundant number, since it is smaller than the sum of its proper divisors (603181544171648).

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

455021405152240 is a wasteful number, since it uses less digits than its factorization.

455021405152240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495604017 (or 1495604011 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

Adding to 455021405152240 its reverse (42251504120554), we get a palindrome (497272909272794).

The spelling of 455021405152240 in words is "four hundred fifty-five trillion, twenty-one billion, four hundred five million, one hundred fifty-two thousand, two hundred forty".