40001404224 has 56 divisors (see below), whose sum is σ = 110438671680. Its totient is φ = 12754069504.

The previous prime is 40001404217. The next prime is 40001404237. The reversal of 40001404224 is 42240410004.

It is a super-2 number, since 2×40001404224² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40001404224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4524729 + ... + 4533560.

Almost surely, 2^40001404224 is an apocalyptic number.

It is an amenable number.

40001404224 is an abundant number, since it is smaller than the sum of its proper divisors (70437267456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40001404224 is a wasteful number, since it uses less digits than its factorization.

40001404224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9058327 (or 9058317 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 40001404224 its reverse (42240410004), we get a palindrome (82241814228).

The spelling of 40001404224 in words is "forty billion, one million, four hundred four thousand, two hundred twenty-four".