43791552 has 84 divisors (see below), whose sum is σ = 143465296. Its totient is φ = 12510720.

The previous prime is 43791551. The next prime is 43791557. The reversal of 43791552 is 25519734.

It is a tau number, because it is divible by the number of its divisors (84).

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

It is not an unprimeable number, because it can be changed into a prime (43791551) 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, 1399 + ... + 9462.

Almost surely, 2^43791552 is an apocalyptic number.

43791552 is a gapful number since it is divisible by the number (42) 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 43791552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71732648).

43791552 is an abundant number, since it is smaller than the sum of its proper divisors (99673744).

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

43791552 is a wasteful number, since it uses less digits than its factorization.

43791552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10886 (or 10873 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 43791552 is about 6617.5185681644. The cubic root of 43791552 is about 352.4764553461.

The spelling of 43791552 in words is "forty-three million, seven hundred ninety-one thousand, five hundred fifty-two".