40320203 has 8 divisors (see below), whose sum is σ = 50269440. Its totient is φ = 31418280.

The previous prime is 40320167. The next prime is 40320211. The reversal of 40320203 is 30202304.

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 40320203 - 2⁶ = 40320139 is a prime.

It is a super-2 number, since 2×40320203² = 3251437539922418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40320233) 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, 261743 + ... + 261896.

It is an arithmetic number, because the mean of its divisors is an integer number (6283680).

Almost surely, 2^40320203 is an apocalyptic number.

40320203 is a deficient number, since it is larger than the sum of its proper divisors (9949237).

40320203 is a wasteful number, since it uses less digits than its factorization.

40320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523657.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 40320203 is about 6349.8191312824. The cubic root of 40320203 is about 342.9053307683.

Adding to 40320203 its reverse (30202304), we get a palindrome (70522507).

The spelling of 40320203 in words is "forty million, three hundred twenty thousand, two hundred three".