40432010405 has 8 divisors (see below), whose sum is σ = 48519504792. Its totient is φ = 32344880128.

The previous prime is 40432010363. The next prime is 40432010407. The reversal of 40432010405 is 50401023404.

It can be written as a sum of positive squares in 4 ways, for example, as 613404289 + 39818606116 = 24767^2 + 199546^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40432010405 - 2¹² = 40432006309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40432010407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331997 + ... + 437133.

It is an arithmetic number, because the mean of its divisors is an integer number (6064938099).

Almost surely, 2^40432010405 is an apocalyptic number.

It is an amenable number.

40432010405 is a deficient number, since it is larger than the sum of its proper divisors (8087494387).

40432010405 is a wasteful number, since it uses less digits than its factorization.

40432010405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182055.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 40432010405 its reverse (50401023404), we get a palindrome (90833033809).

The spelling of 40432010405 in words is "forty billion, four hundred thirty-two million, ten thousand, four hundred five".