40230253 has 4 divisors (see below), whose sum is σ = 45977440. Its totient is φ = 34483068.

The previous prime is 40230247. The next prime is 40230257. The reversal of 40230253 is 35203204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40230253 - 2²¹ = 38133101 is a prime.

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 40230253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873583 + ... + 2873596.

It is an arithmetic number, because the mean of its divisors is an integer number (11494360).

Almost surely, 2^40230253 is an apocalyptic number.

It is an amenable number.

40230253 is a deficient number, since it is larger than the sum of its proper divisors (5747187).

40230253 is an equidigital number, since it uses as much as digits as its factorization.

40230253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747186.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 40230253 is about 6342.7322976774. The cubic root of 40230253 is about 342.6501460432.

Adding to 40230253 its reverse (35203204), we get a palindrome (75433457).

The spelling of 40230253 in words is "forty million, two hundred thirty thousand, two hundred fifty-three".