210994000 has 120 divisors (see below), whose sum is σ = 593754408. Its totient is φ = 72307200.

The previous prime is 210993941. The next prime is 210994013. The reversal of 210994000 is 499012.

It can be written as a sum of positive squares in 4 ways, for example, as 42928704 + 168065296 = 6552^2 + 12964^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96924 + ... + 99076.

Almost surely, 2^210994000 is an apocalyptic number.

210994000 is a gapful number since it is divisible by the number (20) 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 210994000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296877204).

210994000 is an abundant number, since it is smaller than the sum of its proper divisors (382760408).

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

210994000 is a wasteful number, since it uses less digits than its factorization.

210994000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 210994000 is about 14525.6325163485. The cubic root of 210994000 is about 595.3285382824.

The spelling of 210994000 in words is "two hundred ten million, nine hundred ninety-four thousand".