40133004421 has 4 divisors (see below), whose sum is σ = 40133437344. Its totient is φ = 40132571500.

The previous prime is 40133004407. The next prime is 40133004469. The reversal of 40133004421 is 12440033104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40133004421 - 2⁹ = 40133003909 is a prime.

It is a super-2 number, since 2×40133004421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40133004392 and 40133004401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40133004521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14755 + ... + 283696.

It is an arithmetic number, because the mean of its divisors is an integer number (10033359336).

Almost surely, 2^40133004421 is an apocalyptic number.

It is an amenable number.

40133004421 is a deficient number, since it is larger than the sum of its proper divisors (432923).

40133004421 is a wasteful number, since it uses less digits than its factorization.

40133004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432922.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40133004421 its reverse (12440033104), we get a palindrome (52573037525).

The spelling of 40133004421 in words is "forty billion, one hundred thirty-three million, four thousand, four hundred twenty-one".