210394004 has 6 divisors (see below), whose sum is σ = 368189514. Its totient is φ = 105197000.

The previous prime is 210393983. The next prime is 210394031. The reversal of 210394004 is 400493012.

It can be written as a sum of positive squares in only one way, i.e., 182304004 + 28090000 = 13502^2 + 5300^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26299247 + ... + 26299254.

It is an arithmetic number, because the mean of its divisors is an integer number (61364919).

Almost surely, 2^210394004 is an apocalyptic number.

It is an amenable number.

210394004 is a deficient number, since it is larger than the sum of its proper divisors (157795510).

210394004 is a wasteful number, since it uses less digits than its factorization.

210394004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52598505 (or 52598503 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 210394004 is about 14504.9648051969. The cubic root of 210394004 is about 594.7636978001.

The spelling of 210394004 in words is "two hundred ten million, three hundred ninety-four thousand, four".