40009336 has 8 divisors (see below), whose sum is σ = 75017520. Its totient is φ = 20004664.

The previous prime is 40009303. The next prime is 40009337. The reversal of 40009336 is 63390004.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40009336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40009337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500576 + ... + 2500591.

It is an arithmetic number, because the mean of its divisors is an integer number (9377190).

Almost surely, 2^40009336 is an apocalyptic number.

It is an amenable number.

40009336 is a deficient number, since it is larger than the sum of its proper divisors (35008184).

40009336 is a wasteful number, since it uses less digits than its factorization.

40009336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001173 (or 5001169 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 40009336 is about 6325.2933528810. The cubic root of 40009336 is about 342.0217944913.

The spelling of 40009336 in words is "forty million, nine thousand, three hundred thirty-six".