43890048 has 96 divisors (see below), whose sum is σ = 130478400. Its totient is φ = 14146560.

The previous prime is 43890043. The next prime is 43890053. The reversal of 43890048 is 84009834.

It is an interprime number because it is at equal distance from previous prime (43890043) and next prime (43890053).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43889994 and 43890021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43890043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35098 + ... + 36326.

It is an arithmetic number, because the mean of its divisors is an integer number (1359150).

Almost surely, 2^43890048 is an apocalyptic number.

43890048 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 43890048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65239200).

43890048 is an abundant number, since it is smaller than the sum of its proper divisors (86588352).

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

43890048 is a wasteful number, since it uses less digits than its factorization.

43890048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 43890048 is about 6624.9564526871. The cubic root of 43890048 is about 352.7405209245.

The spelling of 43890048 in words is "forty-three million, eight hundred ninety thousand, forty-eight".