440002240 has 28 divisors (see below), whose sum is σ = 1047756096. Its totient is φ = 176000768.

The previous prime is 440002223. The next prime is 440002243. The reversal of 440002240 is 42200044.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (440002243) 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, 687184 + ... + 687823.

Almost surely, 2^440002240 is an apocalyptic number.

440002240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440002240 is an abundant number, since it is smaller than the sum of its proper divisors (607753856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440002240 is a wasteful number, since it uses less digits than its factorization.

440002240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375024 (or 1375014 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 440002240 is about 20976.2303572401. The cubic root of 440002240 is about 760.5917828491.

Adding to 440002240 its reverse (42200044), we get a palindrome (482202284).

The spelling of 440002240 in words is "four hundred forty million, two thousand, two hundred forty".