94435840 has 80 divisors (see below), whose sum is σ = 232777512. Its totient is φ = 36716544.

The previous prime is 94435837. The next prime is 94435841. The reversal of 94435840 is 4853449.

It can be written as a sum of positive squares in 4 ways, for example, as 94322944 + 112896 = 9712^2 + 336^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 94435840.

It is not an unprimeable number, because it can be changed into a prime (94435841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94222 + ... + 95218.

Almost surely, 2^94435840 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 94435840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116388756).

94435840 is an abundant number, since it is smaller than the sum of its proper divisors (138341672).

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

94435840 is an equidigital number, since it uses as much as digits as its factorization.

94435840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 94435840 is about 9717.8104529776. The cubic root of 94435840 is about 455.3852390844.

The spelling of 94435840 in words is "ninety-four million, four hundred thirty-five thousand, eight hundred forty".