40219744 has 12 divisors (see below), whose sum is σ = 79182684. Its totient is φ = 20109856.

The previous prime is 40219721. The next prime is 40219747. The reversal of 40219744 is 44791204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40219747) by changing a digit.

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 as a sum of consecutive naturals, namely, 628402 + ... + 628465.

It is an arithmetic number, because the mean of its divisors is an integer number (6598557).

Almost surely, 2^40219744 is an apocalyptic number.

It is an amenable number.

40219744 is a deficient number, since it is larger than the sum of its proper divisors (38962940).

40219744 is a wasteful number, since it uses less digits than its factorization.

40219744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256877 (or 1256869 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 40219744 is about 6341.9038151016. The cubic root of 40219744 is about 342.6203076031.

The spelling of 40219744 in words is "forty million, two hundred nineteen thousand, seven hundred forty-four".