213903952 has 20 divisors (see below), whose sum is σ = 415115296. Its totient is φ = 106777440.

The previous prime is 213903917. The next prime is 213903959. The reversal of 213903952 is 259309312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213903959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498 + ... + 20689.

Almost surely, 2^213903952 is an apocalyptic number.

It is an amenable number.

213903952 is a deficient number, since it is larger than the sum of its proper divisors (201211344).

213903952 is a wasteful number, since it uses less digits than its factorization.

213903952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21826 (or 21820 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 213903952 is about 14625.4556168346. The cubic root of 213903952 is about 598.0529030053.

The spelling of 213903952 in words is "two hundred thirteen million, nine hundred three thousand, nine hundred fifty-two".