213378704 has 160 divisors (see below), whose sum is σ = 550060032. Its totient is φ = 77760000.

The previous prime is 213378661. The next prime is 213378707. The reversal of 213378704 is 407873312.

It is not an unprimeable number, because it can be changed into a prime (213378707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1413029 + ... + 1413179.

Almost surely, 2^213378704 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 213378704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275030016).

213378704 is an abundant number, since it is smaller than the sum of its proper divisors (336681328).

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

213378704 is a wasteful number, since it uses less digits than its factorization.

213378704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 213378704 is about 14607.4879428326. The cubic root of 213378704 is about 597.5629891053.

The spelling of 213378704 in words is "two hundred thirteen million, three hundred seventy-eight thousand, seven hundred four".