40402303 has 8 divisors (see below), whose sum is σ = 42606320. Its totient is φ = 38206080.

The previous prime is 40402301. The next prime is 40402309. The reversal of 40402303 is 30320404.

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 40402303 - 2¹ = 40402301 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 (40402301) 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, 10951 + ... + 14167.

It is an arithmetic number, because the mean of its divisors is an integer number (5325790).

Almost surely, 2^40402303 is an apocalyptic number.

40402303 is a deficient number, since it is larger than the sum of its proper divisors (2204017).

40402303 is a wasteful number, since it uses less digits than its factorization.

40402303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40402303 is about 6356.2805948133. The cubic root of 40402303 is about 343.1379142632.

Adding to 40402303 its reverse (30320404), we get a palindrome (70722707).

The spelling of 40402303 in words is "forty million, four hundred two thousand, three hundred three".