40055244 has 12 divisors (see below), whose sum is σ = 93462264. Its totient is φ = 13351744.

The previous prime is 40055243. The next prime is 40055261. The reversal of 40055244 is 44255004.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40055243) 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, 1668957 + ... + 1668980.

It is an arithmetic number, because the mean of its divisors is an integer number (7788522).

Almost surely, 2^40055244 is an apocalyptic number.

It is an amenable number.

40055244 is an abundant number, since it is smaller than the sum of its proper divisors (53407020).

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

40055244 is a wasteful number, since it uses less digits than its factorization.

40055244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337944 (or 3337942 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 40055244 is about 6328.9212350921. The cubic root of 40055244 is about 342.1525600946.

The spelling of 40055244 in words is "forty million, fifty-five thousand, two hundred forty-four".