444434025040 has 40 divisors (see below), whose sum is σ = 1078235595648. Its totient is φ = 170044321920.

The previous prime is 444434025037. The next prime is 444434025047. The reversal of 444434025040 is 40520434444.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×444434025040² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 444434024987 and 444434025005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444434025047) 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, 120768276 + ... + 120771955.

Almost surely, 2^444434025040 is an apocalyptic number.

444434025040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444434025040 is an abundant number, since it is smaller than the sum of its proper divisors (633801570608).

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

444434025040 is a wasteful number, since it uses less digits than its factorization.

444434025040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241540267 (or 241540261 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 34.

Adding to 444434025040 its reverse (40520434444), we get a palindrome (484954459484).

The spelling of 444434025040 in words is "four hundred forty-four billion, four hundred thirty-four million, twenty-five thousand, forty".