40253353 has 6 divisors (see below), whose sum is σ = 46825386. Its totient is φ = 34502832.

The previous prime is 40253347. The next prime is 40253359. The reversal of 40253353 is 35335204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40253347) and next prime (40253359).

It can be written as a sum of positive squares in only one way, i.e., 33028009 + 7225344 = 5747^2 + 2688^2 .

It is not a de Polignac number, because 40253353 - 2²¹ = 38156201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40253359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 410700 + ... + 410797.

It is an arithmetic number, because the mean of its divisors is an integer number (7804231).

Almost surely, 2^40253353 is an apocalyptic number.

It is an amenable number.

40253353 is a deficient number, since it is larger than the sum of its proper divisors (6572033).

40253353 is an equidigital number, since it uses as much as digits as its factorization.

40253353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821511 (or 821504 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 40253353 is about 6344.5530181408. The cubic root of 40253353 is about 342.7157161329.

Adding to 40253353 its reverse (35335204), we get a palindrome (75588557).

The spelling of 40253353 in words is "forty million, two hundred fifty-three thousand, three hundred fifty-three".