43768404 has 96 divisors (see below), whose sum is σ = 124185600. Its totient is φ = 13271040.

The previous prime is 43768393. The next prime is 43768409. The reversal of 43768404 is 40486734.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43768409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56532 + ... + 57300.

It is an arithmetic number, because the mean of its divisors is an integer number (1293600).

Almost surely, 2^43768404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43768404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62092800).

43768404 is an abundant number, since it is smaller than the sum of its proper divisors (80417196).

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

43768404 is a wasteful number, since it uses less digits than its factorization.

43768404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 43768404 is about 6615.7693430167. The cubic root of 43768404 is about 352.4143386237.

The spelling of 43768404 in words is "forty-three million, seven hundred sixty-eight thousand, four hundred four".