440000255535021 has 48 divisors (see below), whose sum is σ = 667269836093952. Its totient is φ = 278853341104800.

The previous prime is 440000255534989. The next prime is 440000255535041. The reversal of 440000255535021 is 120535552000044.

It is not a de Polignac number, because 440000255535021 - 2⁵ = 440000255534989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440000255535041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2719814866 + ... + 2719976636.

It is an arithmetic number, because the mean of its divisors is an integer number (13901454918624).

Almost surely, 2^{440000255535021} is an apocalyptic number.

It is an amenable number.

440000255535021 is a deficient number, since it is larger than the sum of its proper divisors (227269580558931).

440000255535021 is a wasteful number, since it uses less digits than its factorization.

440000255535021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242574 (or 242571 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 440000255535021 in words is "four hundred forty trillion, two hundred fifty-five million, five hundred thirty-five thousand, twenty-one".