440424211240 has 64 divisors (see below), whose sum is σ = 1067718652560. Its totient is φ = 162536355840.

The previous prime is 440424211237. The next prime is 440424211267. The reversal of 440424211240 is 42112424044.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15056762436 + 425367448804 = 122706^2 + 652202^2 .

It is a super-2 number, since 2×440424211240² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440424211199 and 440424211208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826380 + ... + 1250500.

Almost surely, 2^440424211240 is an apocalyptic number.

440424211240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440424211240 is an abundant number, since it is smaller than the sum of its proper divisors (627294441320).

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

440424211240 is a wasteful number, since it uses less digits than its factorization.

440424211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426142 (or 426138 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 440424211240 its reverse (42112424044), we get a palindrome (482536635284).

The spelling of 440424211240 in words is "four hundred forty billion, four hundred twenty-four million, two hundred eleven thousand, two hundred forty".