213638350 has 12 divisors (see below), whose sum is σ = 397367424. Its totient is φ = 85455320.

The previous prime is 213638309. The next prime is 213638353. The reversal of 213638350 is 53836312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213638353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2136334 + ... + 2136433.

It is an arithmetic number, because the mean of its divisors is an integer number (33113952).

Almost surely, 2^213638350 is an apocalyptic number.

213638350 is a deficient number, since it is larger than the sum of its proper divisors (183729074).

213638350 is a wasteful number, since it uses less digits than its factorization.

213638350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272779 (or 4272774 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 213638350 is about 14616.3726690311. The cubic root of 213638350 is about 597.8052687502.

The spelling of 213638350 in words is "two hundred thirteen million, six hundred thirty-eight thousand, three hundred fifty".