40055764 has 24 divisors (see below), whose sum is σ = 80474240. Its totient is φ = 17089056.

The previous prime is 40055731. The next prime is 40055767. The reversal of 40055764 is 46755004.

It is a happy number.

40055764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055767) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3289 + ... + 9535.

Almost surely, 2^40055764 is an apocalyptic number.

It is an amenable number.

40055764 is an abundant number, since it is smaller than the sum of its proper divisors (40418476).

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

40055764 is a wasteful number, since it uses less digits than its factorization.

40055764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6487 (or 6485 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 40055764 is about 6328.9623162095. The cubic root of 40055764 is about 342.1540407044.

The spelling of 40055764 in words is "forty million, fifty-five thousand, seven hundred sixty-four".