40000044 has 48 divisors (see below), whose sum is σ = 110114816. Its totient is φ = 11059200.

The previous prime is 40000033. The next prime is 40000061. The reversal of 40000044 is 44000004.

It is a Harshad number since it is a multiple of its sum of digits (12).

40000044 is a modest number, since divided by 44 gives 40 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 39999984 and 40000029.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5077 + ... + 10284.

Almost surely, 2^40000044 is an apocalyptic number.

It is an amenable number.

40000044 is an abundant number, since it is smaller than the sum of its proper divisors (70114772).

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

40000044 is a wasteful number, since it uses less digits than its factorization.

40000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15406 (or 15404 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 40000044 is about 6324.5587988412. The cubic root of 40000044 is about 341.9953147335.

Adding to 40000044 its reverse (44000004), we get a palindrome (84000048).

The spelling of 40000044 in words is "forty million, forty-four", and thus it is an aban number and an eban number.