440453121 has 8 divisors (see below), whose sum is σ = 599766144. Its totient is φ = 287387760.

The previous prime is 440453107. The next prime is 440453137. The reversal of 440453121 is 121354044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 440453121 - 2¹⁸ = 440190977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440453091 and 440453100.

It is not an unprimeable number, because it can be changed into a prime (440413121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561750 + ... + 1562031.

It is an arithmetic number, because the mean of its divisors is an integer number (74970768).

Almost surely, 2^440453121 is an apocalyptic number.

It is an amenable number.

440453121 is a deficient number, since it is larger than the sum of its proper divisors (159313023).

440453121 is a wasteful number, since it uses less digits than its factorization.

440453121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123831.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 440453121 is about 20986.9750321479. The cubic root of 440453121 is about 760.8514931268.

The spelling of 440453121 in words is "four hundred forty million, four hundred fifty-three thousand, one hundred twenty-one".