40433144 has 8 divisors (see below), whose sum is σ = 75812160. Its totient is φ = 20216568.

The previous prime is 40433143. The next prime is 40433177. The reversal of 40433144 is 44133404.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40433143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527064 + ... + 2527079.

It is an arithmetic number, because the mean of its divisors is an integer number (9476520).

Almost surely, 2^40433144 is an apocalyptic number.

It is an amenable number.

40433144 is a deficient number, since it is larger than the sum of its proper divisors (35379016).

40433144 is a wasteful number, since it uses less digits than its factorization.

40433144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054149 (or 5054145 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40433144 is about 6358.7061577022. The cubic root of 40433144 is about 343.2252032212.

Adding to 40433144 its reverse (44133404), we get a palindrome (84566548).

The spelling of 40433144 in words is "forty million, four hundred thirty-three thousand, one hundred forty-four".