40244003 has 4 divisors (see below), whose sum is σ = 40274688. Its totient is φ = 40213320.

The previous prime is 40243991. The next prime is 40244011. The reversal of 40244003 is 30044204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40244003 - 2⁶ = 40243939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40244023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13283 + ... + 16028.

It is an arithmetic number, because the mean of its divisors is an integer number (10068672).

Almost surely, 2^40244003 is an apocalyptic number.

40244003 is a deficient number, since it is larger than the sum of its proper divisors (30685).

40244003 is a wasteful number, since it uses less digits than its factorization.

40244003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30684.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40244003 is about 6343.8161228081. The cubic root of 40244003 is about 342.6891788812.

Adding to 40244003 its reverse (30044204), we get a palindrome (70288207).

The spelling of 40244003 in words is "forty million, two hundred forty-four thousand, three".