40744437 has 16 divisors (see below), whose sum is σ = 55978560. Its totient is φ = 26341632.

The previous prime is 40744409. The next prime is 40744453. The reversal of 40744437 is 73444704.

It is not a de Polignac number, because 40744437 - 2⁶ = 40744373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40744398 and 40744407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40744237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65514 + ... + 66132.

It is an arithmetic number, because the mean of its divisors is an integer number (3498660).

Almost surely, 2^40744437 is an apocalyptic number.

It is an amenable number.

40744437 is a deficient number, since it is larger than the sum of its proper divisors (15234123).

40744437 is a wasteful number, since it uses less digits than its factorization.

40744437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 40744437 is about 6383.1369247416. The cubic root of 40744437 is about 344.1037776176.

It can be divided in two parts, 407 and 44437, that added together give a palindrome (44844).

The spelling of 40744437 in words is "forty million, seven hundred forty-four thousand, four hundred thirty-seven".