40021310433 has 8 divisors (see below), whose sum is σ = 57466497088. Its totient is φ = 24628498704.

The previous prime is 40021310419. The next prime is 40021310437. The reversal of 40021310433 is 33401312004.

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

It is not a de Polignac number, because 40021310433 - 2¹⁰ = 40021309409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40021310437) 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, 513093685 + ... + 513093762.

It is an arithmetic number, because the mean of its divisors is an integer number (7183312136).

Almost surely, 2^40021310433 is an apocalyptic number.

It is an amenable number.

40021310433 is a deficient number, since it is larger than the sum of its proper divisors (17445186655).

40021310433 is a wasteful number, since it uses less digits than its factorization.

40021310433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026187463.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 40021310433 its reverse (33401312004), we get a palindrome (73422622437).

The spelling of 40021310433 in words is "forty billion, twenty-one million, three hundred ten thousand, four hundred thirty-three".