44020206440 has 48 divisors (see below), whose sum is σ = 115216157700. Its totient is φ = 15092641536.

The previous prime is 44020206431. The next prime is 44020206457. The reversal of 44020206440 is 4460202044.

It can be written as a sum of positive squares in 2 ways, for example, as 43146767524 + 873438916 = 207718^2 + 29554^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11227685 + ... + 11231604.

Almost surely, 2^44020206440 is an apocalyptic number.

44020206440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44020206440 is an abundant number, since it is smaller than the sum of its proper divisors (71195951260).

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

44020206440 is a wasteful number, since it uses less digits than its factorization.

44020206440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22459314 (or 22459303 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 44020206440 its reverse (4460202044), we get a palindrome (48480408484).

The spelling of 44020206440 in words is "forty-four billion, twenty million, two hundred six thousand, four hundred forty".