40444000425 has 72 divisors (see below), whose sum is σ = 74838686208. Its totient is φ = 20856960000.

The previous prime is 40444000403. The next prime is 40444000427. The reversal of 40444000425 is 52400044404.

It is a happy number.

40444000425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40444000425 - 2⁵ = 40444000393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40444000427) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15852900 + ... + 15855450.

Almost surely, 2^40444000425 is an apocalyptic number.

40444000425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40444000425 is a deficient number, since it is larger than the sum of its proper divisors (34394685783).

40444000425 is a wasteful number, since it uses less digits than its factorization.

40444000425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871 (or 4863 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 40444000425 its reverse (52400044404), we get a palindrome (92844044829).

The spelling of 40444000425 in words is "forty billion, four hundred forty-four million, four hundred twenty-five", and thus it is an aban number.