40444230051 has 24 divisors (see below), whose sum is σ = 59709012480. Its totient is φ = 26368531056.

The previous prime is 40444230037. The next prime is 40444230061. The reversal of 40444230051 is 15003244404.

It is a happy number.

It is not a de Polignac number, because 40444230051 - 2⁷ = 40444229923 is a prime.

It is a super-2 number, since 2×40444230051² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40444229997 and 40444230024.

It is not an unprimeable number, because it can be changed into a prime (40444230031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514480 + ... + 587858.

It is an arithmetic number, because the mean of its divisors is an integer number (2487875520).

Almost surely, 2^40444230051 is an apocalyptic number.

40444230051 is a deficient number, since it is larger than the sum of its proper divisors (19264782429).

40444230051 is a wasteful number, since it uses less digits than its factorization.

40444230051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74735 (or 74732 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 40444230051 its reverse (15003244404), we get a palindrome (55447474455).

The spelling of 40444230051 in words is "forty billion, four hundred forty-four million, two hundred thirty thousand, fifty-one".