213022452 has 48 divisors (see below), whose sum is σ = 540108800. Its totient is φ = 65098080.

The previous prime is 213022451. The next prime is 213022477. The reversal of 213022452 is 254220312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213022451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8002 + ... + 22137.

Almost surely, 2^213022452 is an apocalyptic number.

It is an amenable number.

213022452 is an abundant number, since it is smaller than the sum of its proper divisors (327086348).

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

213022452 is a wasteful number, since it uses less digits than its factorization.

213022452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30196 (or 30194 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 213022452 is about 14595.2886919033. The cubic root of 213022452 is about 597.2302448797.

Adding to 213022452 its reverse (254220312), we get a palindrome (467242764).

The spelling of 213022452 in words is "two hundred thirteen million, twenty-two thousand, four hundred fifty-two".