4405121400040 has 128 divisors (see below), whose sum is σ = 10047466022400. Its totient is φ = 1738087464960.

The previous prime is 4405121400037. The next prime is 4405121400049. The reversal of 4405121400040 is 400041215044.

It is a junction number, because it is equal to n+sod(n) for n = 4405121399978 and 4405121400014.

It is not an unprimeable number, because it can be changed into a prime (4405121400049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573505000 + ... + 573512680.

It is an arithmetic number, because the mean of its divisors is an integer number (78495828300).

Almost surely, 2^{4405121400040} is an apocalyptic number.

4405121400040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4405121400040 is an abundant number, since it is smaller than the sum of its proper divisors (5642344622360).

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

4405121400040 is a wasteful number, since it uses less digits than its factorization.

4405121400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507 (or 8503 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 4405121400040 its reverse (400041215044), we get a palindrome (4805162615084).

The spelling of 4405121400040 in words is "four trillion, four hundred five billion, one hundred twenty-one million, four hundred thousand, forty".