40021133433 has 8 divisors (see below), whose sum is σ = 53393036928. Its totient is φ = 26664992784.

The previous prime is 40021133431. The next prime is 40021133441. The reversal of 40021133433 is 33433112004.

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

It is not a de Polignac number, because 40021133433 - 2¹ = 40021133431 is a prime.

It is a super-2 number, since 2×40021133433² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40021133431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3934785 + ... + 3944942.

It is an arithmetic number, because the mean of its divisors is an integer number (6674129616).

Almost surely, 2^40021133433 is an apocalyptic number.

It is an amenable number.

40021133433 is a deficient number, since it is larger than the sum of its proper divisors (13371903495).

40021133433 is a wasteful number, since it uses less digits than its factorization.

40021133433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7881423.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 40021133433 its reverse (33433112004), we get a palindrome (73454245437).

The spelling of 40021133433 in words is "forty billion, twenty-one million, one hundred thirty-three thousand, four hundred thirty-three".