40243521404254 has 32 divisors (see below), whose sum is σ = 69010239891456. Its totient is φ = 17241887819520.

The previous prime is 40243521404221. The next prime is 40243521404293. The reversal of 40243521404254 is 45240412534204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687764859 + ... + 687823369.

It is an arithmetic number, because the mean of its divisors is an integer number (2156569996608).

Almost surely, 2^{40243521404254} is an apocalyptic number.

40243521404254 is a deficient number, since it is larger than the sum of its proper divisors (28766718487202).

40243521404254 is a wasteful number, since it uses less digits than its factorization.

40243521404254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72880.

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 40243521404254 its reverse (45240412534204), we get a palindrome (85483933938458).

The spelling of 40243521404254 in words is "forty trillion, two hundred forty-three billion, five hundred twenty-one million, four hundred four thousand, two hundred fifty-four".