40180444 has 12 divisors (see below), whose sum is σ = 70429968. Its totient is φ = 20057600.

The previous prime is 40180429. The next prime is 40180463. The reversal of 40180444 is 44408104.

It is a happy number.

40180444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40180444² = 3228936160074272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5272 + ... + 10399.

It is an arithmetic number, because the mean of its divisors is an integer number (5869164).

Almost surely, 2^40180444 is an apocalyptic number.

It is an amenable number.

40180444 is a deficient number, since it is larger than the sum of its proper divisors (30249524).

40180444 is a wasteful number, since it uses less digits than its factorization.

40180444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16316 (or 16314 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 40180444 is about 6338.8046191691. The cubic root of 40180444 is about 342.5086761437.

Adding to 40180444 its reverse (44408104), we get a palindrome (84588548).

The spelling of 40180444 in words is "forty million, one hundred eighty thousand, four hundred forty-four".