94129128 has 80 divisors (see below), whose sum is σ = 272794500. Its totient is φ = 30288384.

The previous prime is 94129121. The next prime is 94129129. The reversal of 94129128 is 82192149.

It can be written as a sum of positive squares in 2 ways, for example, as 94128804 + 324 = 9702^2 + 18^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 94129092 and 94129101.

It is not an unprimeable number, because it can be changed into a prime (94129121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16288 + ... + 21296.

Almost surely, 2^94129128 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 94129128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136397250).

94129128 is an abundant number, since it is smaller than the sum of its proper divisors (178665372).

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

94129128 is a wasteful number, since it uses less digits than its factorization.

94129128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056 (or 5043 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 94129128 is about 9702.0166975738. The cubic root of 94129128 is about 454.8916990558.

The spelling of 94129128 in words is "ninety-four million, one hundred twenty-nine thousand, one hundred twenty-eight".