40444424 has 16 divisors (see below), whose sum is σ = 77597520. Its totient is φ = 19751760.

The previous prime is 40444421. The next prime is 40444433. The reversal of 40444424 is 42444404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40444393 and 40444402.

It is not an unprimeable number, because it can be changed into a prime (40444421) 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, 58442 + ... + 59129.

It is an arithmetic number, because the mean of its divisors is an integer number (4849845).

Almost surely, 2^40444424 is an apocalyptic number.

It is an amenable number.

40444424 is a deficient number, since it is larger than the sum of its proper divisors (37153096).

40444424 is a wasteful number, since it uses less digits than its factorization.

40444424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117620 (or 117616 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 40444424 is about 6359.5930687427. The cubic root of 40444424 is about 343.2571178003.

Adding to 40444424 its reverse (42444404), we get a palindrome (82888828).

The spelling of 40444424 in words is "forty million, four hundred forty-four thousand, four hundred twenty-four".