40253305 has 24 divisors (see below), whose sum is σ = 52806600. Its totient is φ = 29417472.

The previous prime is 40253303. The next prime is 40253347. The reversal of 40253305 is 50335204.

It can be written as a sum of positive squares in 4 ways, for example, as 3055504 + 37197801 = 1748^2 + 6099^2 .

It is not a de Polignac number, because 40253305 - 2¹ = 40253303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40253303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51961 + ... + 52729.

It is an arithmetic number, because the mean of its divisors is an integer number (2200275).

Almost surely, 2^40253305 is an apocalyptic number.

It is an amenable number.

40253305 is a deficient number, since it is larger than the sum of its proper divisors (12553295).

40253305 is a wasteful number, since it uses less digits than its factorization.

40253305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 40253305 is about 6344.5492353673. The cubic root of 40253305 is about 342.7155799094.

Adding to 40253305 its reverse (50335204), we get a palindrome (90588509).

The spelling of 40253305 in words is "forty million, two hundred fifty-three thousand, three hundred five".