40707644 has 6 divisors (see below), whose sum is σ = 71238384. Its totient is φ = 20353820.

The previous prime is 40707617. The next prime is 40707661. The reversal of 40707644 is 44670704.

40707644 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 2×40707644² = 3314224560061472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40707644.

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 as a sum of consecutive naturals, namely, 5088452 + ... + 5088459.

It is an arithmetic number, because the mean of its divisors is an integer number (11873064).

Almost surely, 2^40707644 is an apocalyptic number.

It is an amenable number.

40707644 is a deficient number, since it is larger than the sum of its proper divisors (30530740).

40707644 is a wasteful number, since it uses less digits than its factorization.

40707644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10176915 (or 10176913 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 40707644 is about 6380.2542269098. The cubic root of 40707644 is about 344.0001690102. Note that the first 3 decimals are identical.

The spelling of 40707644 in words is "forty million, seven hundred seven thousand, six hundred forty-four".