40552400444 has 24 divisors (see below), whose sum is σ = 73477197360. Its totient is φ = 19560122624.

The previous prime is 40552400407. The next prime is 40552400459. The reversal of 40552400444 is 44400425504.

It is a self number, because there is not a number n which added to its sum of digits gives 40552400444.

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, 15389 + ... + 285204.

It is an arithmetic number, because the mean of its divisors is an integer number (3061549890).

Almost surely, 2^40552400444 is an apocalyptic number.

It is an amenable number.

40552400444 is a deficient number, since it is larger than the sum of its proper divisors (32924796916).

40552400444 is a wasteful number, since it uses less digits than its factorization.

40552400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301789 (or 301787 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 40552400444 its reverse (44400425504), we get a palindrome (84952825948).

The spelling of 40552400444 in words is "forty billion, five hundred fifty-two million, four hundred thousand, four hundred forty-four".