40245303 has 8 divisors (see below), whose sum is σ = 61326208. Its totient is φ = 22997304.

The previous prime is 40245281. The next prime is 40245311. The reversal of 40245303 is 30354204.

It is a happy number.

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

It is not a de Polignac number, because 40245303 - 2⁸ = 40245047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1916443 = 40245303 / (4 + 0 + 2 + 4 + 5 + 3 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40245303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245343) 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, 958201 + ... + 958242.

It is an arithmetic number, because the mean of its divisors is an integer number (7665776).

Almost surely, 2^40245303 is an apocalyptic number.

40245303 is a deficient number, since it is larger than the sum of its proper divisors (21080905).

40245303 is a wasteful number, since it uses less digits than its factorization.

40245303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916453.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 40245303 is about 6343.9185839669. The cubic root of 40245303 is about 342.6928687985.

Adding to 40245303 its reverse (30354204), we get a palindrome (70599507).

The spelling of 40245303 in words is "forty million, two hundred forty-five thousand, three hundred three".