994870128 has 80 divisors (see below), whose sum is σ = 2997228800. Its totient is φ = 284243904.

The previous prime is 994870127. The next prime is 994870133. The reversal of 994870128 is 821078499.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994870127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13750 + ... + 46677.

It is an arithmetic number, because the mean of its divisors is an integer number (37465360).

Almost surely, 2^994870128 is an apocalyptic number.

994870128 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

994870128 is an abundant number, since it is smaller than the sum of its proper divisors (2002358672).

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

994870128 is a wasteful number, since it uses less digits than its factorization.

994870128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60459 (or 60439 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 994870128 is about 31541.5619144011. The cubic root of 994870128 is about 998.2871103509.

The spelling of 994870128 in words is "nine hundred ninety-four million, eight hundred seventy thousand, one hundred twenty-eight".