40318528 has 14 divisors (see below), whose sum is σ = 80007206. Its totient is φ = 20159232.

The previous prime is 40318511. The next prime is 40318529. The reversal of 40318528 is 82581304.

It can be written as a sum of positive squares in only one way, i.e., 31270464 + 9048064 = 5592^2 + 3008^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40318528.

It is not an unprimeable number, because it can be changed into a prime (40318529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314925 + ... + 315052.

Almost surely, 2^40318528 is an apocalyptic number.

It is an amenable number.

40318528 is a deficient number, since it is larger than the sum of its proper divisors (39688678).

40318528 is an equidigital number, since it uses as much as digits as its factorization.

40318528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629989 (or 629979 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 40318528 is about 6349.6872363920. The cubic root of 40318528 is about 342.9005823267.

The spelling of 40318528 in words is "forty million, three hundred eighteen thousand, five hundred twenty-eight".