40021338469 has 8 divisors (see below), whose sum is σ = 45742132800. Its totient is φ = 34301409216.

The previous prime is 40021338451. The next prime is 40021338491. The reversal of 40021338469 is 96483312004.

It is a happy number.

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 40021338469 - 2⁹ = 40021337957 is a prime.

It is a super-2 number, since 2×40021338469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40021330469) 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 7 ways as a sum of consecutive naturals, for example, 113899 + ... + 304984.

It is an arithmetic number, because the mean of its divisors is an integer number (5717766600).

Almost surely, 2^40021338469 is an apocalyptic number.

It is an amenable number.

40021338469 is a deficient number, since it is larger than the sum of its proper divisors (5720794331).

40021338469 is a wasteful number, since it uses less digits than its factorization.

40021338469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432539.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 40021338469 in words is "forty billion, twenty-one million, three hundred thirty-eight thousand, four hundred sixty-nine".