440542153 has 4 divisors (see below), whose sum is σ = 440864388. Its totient is φ = 440219920.

The previous prime is 440542129. The next prime is 440542169. The reversal of 440542153 is 351245044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 202549824 + 237992329 = 14232^2 + 15427^2 .

It is a cyclic number.

It is not a de Polignac number, because 440542153 - 2⁵ = 440542121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440543153) 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, 159058 + ... + 161803.

It is an arithmetic number, because the mean of its divisors is an integer number (110216097).

Almost surely, 2^440542153 is an apocalyptic number.

It is an amenable number.

440542153 is a deficient number, since it is larger than the sum of its proper divisors (322235).

440542153 is a wasteful number, since it uses less digits than its factorization.

440542153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322234.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 440542153 is about 20989.0960500923. The cubic root of 440542153 is about 760.9027551592.

Adding to 440542153 its reverse (351245044), we get a palindrome (791787197).

The spelling of 440542153 in words is "four hundred forty million, five hundred forty-two thousand, one hundred fifty-three".