40251424405 has 8 divisors (see below), whose sum is σ = 48304342584. Its totient is φ = 32199384000.

The previous prime is 40251424387. The next prime is 40251424439. The reversal of 40251424405 is 50442415204.

It can be written as a sum of positive squares in 4 ways, for example, as 13452752196 + 26798672209 = 115986^2 + 163703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40251424405 - 2¹¹ = 40251422357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113946 + ... + 305755.

It is an arithmetic number, because the mean of its divisors is an integer number (6038042823).

Almost surely, 2^40251424405 is an apocalyptic number.

It is an amenable number.

40251424405 is a deficient number, since it is larger than the sum of its proper divisors (8052918179).

40251424405 is a wasteful number, since it uses less digits than its factorization.

40251424405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438887.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 40251424405 its reverse (50442415204), we get a palindrome (90693839609).

The spelling of 40251424405 in words is "forty billion, two hundred fifty-one million, four hundred twenty-four thousand, four hundred five".