440342253 has 12 divisors (see below), whose sum is σ = 684977020. Its totient is φ = 270979776.

The previous prime is 440342251. The next prime is 440342261. The reversal of 440342253 is 352243044.

440342253 is a `hidden beast` number, since 4 + 403 + 4 + 2 + 253 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 304223364 + 136118889 = 17442^2 + 11667^2 .

It is not a de Polignac number, because 440342253 - 2¹ = 440342251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440342251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1881688 + ... + 1881921.

Almost surely, 2^440342253 is an apocalyptic number.

It is an amenable number.

440342253 is a deficient number, since it is larger than the sum of its proper divisors (244634767).

440342253 is a wasteful number, since it uses less digits than its factorization.

440342253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763628 (or 3763625 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 440342253 is about 20984.3335133618. Note that the first 3 decimals coincide. The cubic root of 440342253 is about 760.7876489037.

Adding to 440342253 its reverse (352243044), we get a palindrome (792585297).

It can be divided in two parts, 4403 and 42253, that added together give a 6-th power (46656 = 6⁶).

The spelling of 440342253 in words is "four hundred forty million, three hundred forty-two thousand, two hundred fifty-three".