213753228 has 36 divisors (see below), whose sum is σ = 540079848. Its totient is φ = 65769600.

The previous prime is 213753209. The next prime is 213753233. The reversal of 213753228 is 822357312.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50673 + ... + 54728.

It is an arithmetic number, because the mean of its divisors is an integer number (15002218).

Almost surely, 2^213753228 is an apocalyptic number.

It is an amenable number.

213753228 is an abundant number, since it is smaller than the sum of its proper divisors (326326620).

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

213753228 is a wasteful number, since it uses less digits than its factorization.

213753228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105434 (or 105419 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 213753228 is about 14620.3019120673. The cubic root of 213753228 is about 597.9124005269.

The spelling of 213753228 in words is "two hundred thirteen million, seven hundred fifty-three thousand, two hundred twenty-eight".