994555800 has 384 divisors, whose sum is σ = 3974745600. Its totient is φ = 223879680.

The previous prime is 994555769. The next prime is 994555823. The reversal of 994555800 is 8555499.

994555800 is a `hidden beast` number, since 9 + 94 + 5 + 558 + 0 + 0 = 666.

It is a super-3 number, since 3×994555800³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3137242 + ... + 3137558.

It is an arithmetic number, because the mean of its divisors is an integer number (10350900).

Almost surely, 2^994555800 is an apocalyptic number.

994555800 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994555800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987372800).

994555800 is an abundant number, since it is smaller than the sum of its proper divisors (2980189800).

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

994555800 is a wasteful number, since it uses less digits than its factorization.

994555800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 994555800 is about 31536.5787618124. The cubic root of 994555800 is about 998.1819634127.

The spelling of 994555800 in words is "nine hundred ninety-four million, five hundred fifty-five thousand, eight hundred".