43909890048 has 360 divisors, whose sum is σ = 135254311920. Its totient is φ = 14226554880.

The previous prime is 43909890041. The next prime is 43909890083. The reversal of 43909890048 is 84009890934.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 43909889976 and 43909890003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43909890041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163233658 + ... + 163233926.

It is an arithmetic number, because the mean of its divisors is an integer number (375706422).

Almost surely, 2^43909890048 is an apocalyptic number.

43909890048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43909890048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67627155960).

43909890048 is an abundant number, since it is smaller than the sum of its proper divisors (91344421872).

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

43909890048 is an frugal number, since it uses more digits than its factorization.

43909890048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 43909890048 in words is "forty-three billion, nine hundred nine million, eight hundred ninety thousand, forty-eight".