40320332433 has 12 divisors (see below), whose sum is σ = 59038295940. Its totient is φ = 26511998976.

The previous prime is 40320332399. The next prime is 40320332449. The reversal of 40320332433 is 33423302304.

40320332433 is a `hidden beast` number, since 4 + 0 + 320 + 332 + 4 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29229715089 + 11090617344 = 170967^2 + 105312^2 .

It is not a de Polignac number, because 40320332433 - 2¹⁰ = 40320331409 is a prime.

It is a super-4 number, since 4×40320332433⁴ (a number of 44 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40320332397 and 40320332406.

It is not an unprimeable number, because it can be changed into a prime (40320332473) 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 in 11 ways as a sum of consecutive naturals, for example, 30684528 + ... + 30685841.

It is an arithmetic number, because the mean of its divisors is an integer number (4919857995).

Almost surely, 2^40320332433 is an apocalyptic number.

It is an amenable number.

40320332433 is a deficient number, since it is larger than the sum of its proper divisors (18717963507).

40320332433 is a wasteful number, since it uses less digits than its factorization.

40320332433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61370448 (or 61370445 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 27.

Adding to 40320332433 its reverse (33423302304), we get a palindrome (73743634737).

The spelling of 40320332433 in words is "forty billion, three hundred twenty million, three hundred thirty-two thousand, four hundred thirty-three".