40513672 has 32 divisors (see below), whose sum is σ = 79606080. Its totient is φ = 19293120.

The previous prime is 40513663. The next prime is 40513673. The reversal of 40513672 is 27631504.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40513672.

It is not an unprimeable number, because it can be changed into a prime (40513673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77203 + ... + 77725.

It is an arithmetic number, because the mean of its divisors is an integer number (2487690).

Almost surely, 2^40513672 is an apocalyptic number.

It is an amenable number.

40513672 is a deficient number, since it is larger than the sum of its proper divisors (39092408).

40513672 is a wasteful number, since it uses less digits than its factorization.

40513672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 40513672 is about 6365.0351138073. The cubic root of 40513672 is about 343.4529117101.

The spelling of 40513672 in words is "forty million, five hundred thirteen thousand, six hundred seventy-two".