440040404000 has 48 divisors (see below), whose sum is σ = 1081179282456. Its totient is φ = 176016160000.

The previous prime is 440040403973. The next prime is 440040404009. The reversal of 440040404000 is 404040044.

It can be written as a sum of positive squares in 4 ways, for example, as 23741879056 + 416298524944 = 154084^2 + 645212^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (440040404009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55001051 + ... + 55009050.

Almost surely, 2^440040404000 is an apocalyptic number.

440040404000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440040404000 is an abundant number, since it is smaller than the sum of its proper divisors (641138878456).

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

440040404000 is a wasteful number, since it uses less digits than its factorization.

440040404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010126 (or 110010108 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 440040404000 its reverse (404040044), we get a palindrome (440444444044).

It can be divided in two parts, 4 and 40040404000, that added together give a palindrome (40040404004).

The spelling of 440040404000 in words is "four hundred forty billion, forty million, four hundred four thousand".