43654016 has 64 divisors (see below), whose sum is σ = 100759680. Its totient is φ = 18451968.

The previous prime is 43654003. The next prime is 43654021. The reversal of 43654016 is 61045634.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×43654016² = 3811346225856512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43654016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74075 + ... + 74661.

It is an arithmetic number, because the mean of its divisors is an integer number (1574370).

Almost surely, 2^43654016 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 43654016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50379840).

43654016 is an abundant number, since it is smaller than the sum of its proper divisors (57105664).

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

43654016 is an equidigital number, since it uses as much as digits as its factorization.

43654016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 43654016 is about 6607.1185852836. The cubic root of 43654016 is about 352.1070610979.

The spelling of 43654016 in words is "forty-three million, six hundred fifty-four thousand, sixteen".