4442400331425 has 144 divisors (see below), whose sum is σ = 9470242080000. Its totient is φ = 1947620989440.

The previous prime is 4442400331423. The next prime is 4442400331433. The reversal of 4442400331425 is 5241330042444.

4442400331425 is a `hidden beast` number, since 4 + 44 + 240 + 0 + 331 + 42 + 5 = 666.

It is not a de Polignac number, because 4442400331425 - 2¹ = 4442400331423 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4442400331425.

It is not an unprimeable number, because it can be changed into a prime (4442400331423) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6479196 + ... + 7131954.

It is an arithmetic number, because the mean of its divisors is an integer number (65765570000).

Almost surely, 2^{4442400331425} is an apocalyptic number.

4442400331425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4442400331425 is an abundant number, since it is smaller than the sum of its proper divisors (5027841748575).

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

4442400331425 is a wasteful number, since it uses less digits than its factorization.

4442400331425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652960 (or 652952 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 4442400331425 its reverse (5241330042444), we get a palindrome (9683730373869).

The spelling of 4442400331425 in words is "four trillion, four hundred forty-two billion, four hundred million, three hundred thirty-one thousand, four hundred twenty-five".