40024404554 has 4 divisors (see below), whose sum is σ = 60036606834. Its totient is φ = 20012202276.

The previous prime is 40024404527. The next prime is 40024404559. The reversal of 40024404554 is 45540442004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23050223329 + 16974181225 = 151823^2 + 130285^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40024404554.

It is not an unprimeable number, because it can be changed into a prime (40024404559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006101137 + ... + 10006101140.

Almost surely, 2^40024404554 is an apocalyptic number.

40024404554 is a deficient number, since it is larger than the sum of its proper divisors (20012202280).

40024404554 is a wasteful number, since it uses less digits than its factorization.

40024404554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20012202279.

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

Adding to 40024404554 its reverse (45540442004), we get a palindrome (85564846558).

The spelling of 40024404554 in words is "forty billion, twenty-four million, four hundred four thousand, five hundred fifty-four".