40306303 has 8 divisors (see below), whose sum is σ = 42777072. Its totient is φ = 37846656.

The previous prime is 40306297. The next prime is 40306339. The reversal of 40306303 is 30360304.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40306303 - 2²¹ = 38209151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40306363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5401 + ... + 10477.

It is an arithmetic number, because the mean of its divisors is an integer number (5347134).

Almost surely, 2^40306303 is an apocalyptic number.

40306303 is a deficient number, since it is larger than the sum of its proper divisors (2470769).

40306303 is a wasteful number, since it uses less digits than its factorization.

40306303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 40306303 is about 6348.7245175704. The cubic root of 40306303 is about 342.8659218073.

Adding to 40306303 its reverse (30360304), we get a palindrome (70666607).

The spelling of 40306303 in words is "forty million, three hundred six thousand, three hundred three".