440413420 has 24 divisors (see below), whose sum is σ = 925760304. Its totient is φ = 175995456.

The previous prime is 440413403. The next prime is 440413451. The reversal of 440413420 is 24314044.

It is a junction number, because it is equal to n+sod(n) for n = 440413391 and 440413400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11787 + ... + 31933.

It is an arithmetic number, because the mean of its divisors is an integer number (38573346).

Almost surely, 2^440413420 is an apocalyptic number.

It is an amenable number.

440413420 is an abundant number, since it is smaller than the sum of its proper divisors (485346884).

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

440413420 is a wasteful number, since it uses less digits than its factorization.

440413420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21249 (or 21247 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 440413420 is about 20986.0291622784. The cubic root of 440413420 is about 760.8286322204.

Adding to 440413420 its reverse (24314044), we get a palindrome (464727464).

The spelling of 440413420 in words is "four hundred forty million, four hundred thirteen thousand, four hundred twenty".