440405324132240 has 20 divisors (see below), whose sum is σ = 1023942378607644. Its totient is φ = 176162129652864.

The previous prime is 440405324132237. The next prime is 440405324132261. The reversal of 440405324132240 is 42231423504044.

It can be written as a sum of positive squares in 2 ways, for example, as 190412290608016 + 249993033524224 = 13798996^2 + 15811168^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×440405324132240² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440405324132194 and 440405324132203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752533275747 + ... + 2752533275906.

Almost surely, 2^{440405324132240} is an apocalyptic number.

440405324132240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440405324132240 is an abundant number, since it is smaller than the sum of its proper divisors (583537054475404).

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

440405324132240 is a wasteful number, since it uses less digits than its factorization.

440405324132240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505066551666 (or 5505066551660 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 440405324132240 its reverse (42231423504044), we get a palindrome (482636747636284).

The spelling of 440405324132240 in words is "four hundred forty trillion, four hundred five billion, three hundred twenty-four million, one hundred thirty-two thousand, two hundred forty".