40440355501 has 8 divisors (see below), whose sum is σ = 49772745344. Its totient is φ = 31996764720.

The previous prime is 40440355499. The next prime is 40440355511. The reversal of 40440355501 is 10555304404.

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 40440355501 - 2¹ = 40440355499 is a prime.

It is a super-2 number, since 2×40440355501² (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 (40440355511) 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, 222199665 + ... + 222199846.

It is an arithmetic number, because the mean of its divisors is an integer number (6221593168).

Almost surely, 2^40440355501 is an apocalyptic number.

It is an amenable number.

40440355501 is a deficient number, since it is larger than the sum of its proper divisors (9332389843).

40440355501 is a wasteful number, since it uses less digits than its factorization.

40440355501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444399531.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 40440355501 its reverse (10555304404), we get a palindrome (50995659905).

The spelling of 40440355501 in words is "forty billion, four hundred forty million, three hundred fifty-five thousand, five hundred one".