40302685 has 8 divisors (see below), whose sum is σ = 48672216. Its totient is φ = 32036160.

The previous prime is 40302677. The next prime is 40302701. The reversal of 40302685 is 58620304.

It can be written as a sum of positive squares in 4 ways, for example, as 5692996 + 34609689 = 2386^2 + 5883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40302685 - 2³ = 40302677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24886 + ... + 26455.

It is an arithmetic number, because the mean of its divisors is an integer number (6084027).

Almost surely, 2^40302685 is an apocalyptic number.

It is an amenable number.

40302685 is a deficient number, since it is larger than the sum of its proper divisors (8369531).

40302685 is a wasteful number, since it uses less digits than its factorization.

40302685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51503.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40302685 is about 6348.4395720523. The cubic root of 40302685 is about 342.8556626507.

Adding to 40302685 its reverse (58620304), we get a palindrome (98922989).

The spelling of 40302685 in words is "forty million, three hundred two thousand, six hundred eighty-five".