40302318 has 16 divisors (see below), whose sum is σ = 92119680. Its totient is φ = 11514936.

The previous prime is 40302293. The next prime is 40302319. The reversal of 40302318 is 81320304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40302294 and 40302303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40302319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479748 + ... + 479831.

It is an arithmetic number, because the mean of its divisors is an integer number (5757480).

Almost surely, 2^40302318 is an apocalyptic number.

40302318 is an abundant number, since it is smaller than the sum of its proper divisors (51817362).

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

40302318 is a wasteful number, since it uses less digits than its factorization.

40302318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959591.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40302318 is about 6348.4106672458. The cubic root of 40302318 is about 342.8546219557.

The spelling of 40302318 in words is "forty million, three hundred two thousand, three hundred eighteen".