40055544 has 24 divisors (see below), whose sum is σ = 108483960. Its totient is φ = 13351824.

The previous prime is 40055539. The next prime is 40055569. The reversal of 40055544 is 44555004.

40055544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

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 in 5 ways as a sum of consecutive naturals, for example, 278092 + ... + 278235.

It is an arithmetic number, because the mean of its divisors is an integer number (4520165).

Almost surely, 2^40055544 is an apocalyptic number.

It is an amenable number.

40055544 is an abundant number, since it is smaller than the sum of its proper divisors (68428416).

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

40055544 is a wasteful number, since it uses less digits than its factorization.

40055544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556339 (or 556332 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 40055544 is about 6328.9449357693. The cubic root of 40055544 is about 342.1534142942.

The spelling of 40055544 in words is "forty million, fifty-five thousand, five hundred forty-four".