40787684 has 12 divisors (see below), whose sum is σ = 81575424. Its totient is φ = 17480424.

The previous prime is 40787683. The next prime is 40787729. The reversal of 40787684 is 48678704.

40787684 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40787683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728324 + ... + 728379.

It is an arithmetic number, because the mean of its divisors is an integer number (6797952).

Almost surely, 2^40787684 is an apocalyptic number.

It is an amenable number.

40787684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40787684 is a wasteful number, since it uses less digits than its factorization.

40787684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456714 (or 1456712 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 40787684 is about 6386.5236240070. The cubic root of 40787684 is about 344.2254808905.

The spelling of 40787684 in words is "forty million, seven hundred eighty-seven thousand, six hundred eighty-four".