40105421332 has 6 divisors (see below), whose sum is σ = 70184487338. Its totient is φ = 20052710664.

The previous prime is 40105421281. The next prime is 40105421351. The reversal of 40105421332 is 23312450104.

It can be written as a sum of positive squares in only one way, i.e., 40097659536 + 7761796 = 200244^2 + 2786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40105421297 and 40105421306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013177663 + ... + 5013177670.

Almost surely, 2^40105421332 is an apocalyptic number.

It is an amenable number.

40105421332 is a deficient number, since it is larger than the sum of its proper divisors (30079066006).

40105421332 is a wasteful number, since it uses less digits than its factorization.

40105421332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026355337 (or 10026355335 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 40105421332 its reverse (23312450104), we get a palindrome (63417871436).

The spelling of 40105421332 in words is "forty billion, one hundred five million, four hundred twenty-one thousand, three hundred thirty-two".