440445452440 has 128 divisors (see below), whose sum is σ = 1201848192000. Its totient is φ = 141995893248.

The previous prime is 440445452411. The next prime is 440445452453. The reversal of 440445452440 is 44254544044.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 440445452393 and 440445452402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199635 + ... + 959554.

It is an arithmetic number, because the mean of its divisors is an integer number (9389439000).

Almost surely, 2^440445452440 is an apocalyptic number.

440445452440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440445452440 is an abundant number, since it is smaller than the sum of its proper divisors (761402739560).

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

440445452440 is a wasteful number, since it uses less digits than its factorization.

440445452440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159289 (or 1159285 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 40.

Adding to 440445452440 its reverse (44254544044), we get a palindrome (484699996484).

The spelling of 440445452440 in words is "four hundred forty billion, four hundred forty-five million, four hundred fifty-two thousand, four hundred forty".