40044404 has 6 divisors (see below), whose sum is σ = 70077714. Its totient is φ = 20022200.

The previous prime is 40044353. The next prime is 40044409. The reversal of 40044404 is 40444004.

It can be written as a sum of positive squares in only one way, i.e., 27583504 + 12460900 = 5252^2 + 3530^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005547 + ... + 5005554.

It is an arithmetic number, because the mean of its divisors is an integer number (11679619).

Almost surely, 2^40044404 is an apocalyptic number.

It is an amenable number.

40044404 is a deficient number, since it is larger than the sum of its proper divisors (30033310).

40044404 is a wasteful number, since it uses less digits than its factorization.

40044404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011105 (or 10011103 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40044404 is about 6328.0647910716. The cubic root of 40044404 is about 342.1216921565.

Adding to 40044404 its reverse (40444004), we get a palindrome (80488408).

The spelling of 40044404 in words is "forty million, forty-four thousand, four hundred four".