40382568 has 24 divisors (see below), whose sum is σ = 109369650. Its totient is φ = 13460832.

The previous prime is 40382521. The next prime is 40382569. The reversal of 40382568 is 86528304.

It can be written as a sum of positive squares in only one way, i.e., 40220964 + 161604 = 6342^2 + 402^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40382569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280363 + ... + 280506.

Almost surely, 2^40382568 is an apocalyptic number.

It is an amenable number.

40382568 is an abundant number, since it is smaller than the sum of its proper divisors (68987082).

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

40382568 is a wasteful number, since it uses less digits than its factorization.

40382568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560881 (or 560874 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 40382568 is about 6354.7280036206. The cubic root of 40382568 is about 343.0820351909.

The spelling of 40382568 in words is "forty million, three hundred eighty-two thousand, five hundred sixty-eight".