213773450 has 48 divisors (see below), whose sum is σ = 438346944. Its totient is φ = 76915200.

The previous prime is 213773423. The next prime is 213773459. The reversal of 213773450 is 54377312.

213773450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213773459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51347 + ... + 55353.

It is an arithmetic number, because the mean of its divisors is an integer number (9132228).

Almost surely, 2^213773450 is an apocalyptic number.

213773450 is an abundant number, since it is smaller than the sum of its proper divisors (224573494).

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

213773450 is a wasteful number, since it uses less digits than its factorization.

213773450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127 (or 4122 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 213773450 is about 14620.9934682976. The cubic root of 213773450 is about 597.9312549842.

The spelling of 213773450 in words is "two hundred thirteen million, seven hundred seventy-three thousand, four hundred fifty".