213446952 has 48 divisors (see below), whose sum is σ = 580531380. Its totient is φ = 70848000.

The previous prime is 213446941. The next prime is 213446957. The reversal of 213446952 is 259644312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 212751396 + 695556 = 14586^2 + 834^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (213446957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11202 + ... + 23502.

Almost surely, 2^213446952 is an apocalyptic number.

It is an amenable number.

213446952 is an abundant number, since it is smaller than the sum of its proper divisors (367084428).

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

213446952 is a wasteful number, since it uses less digits than its factorization.

213446952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12554 (or 12547 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 213446952 is about 14609.8238182396. The cubic root of 213446952 is about 597.6266913881.

It can be divided in two parts, 2134469 and 52, that added together give a square (2134521 = 1461²).

The spelling of 213446952 in words is "two hundred thirteen million, four hundred forty-six thousand, nine hundred fifty-two".