212407952 has 20 divisors (see below), whose sum is σ = 412056960. Its totient is φ = 106070688.

The previous prime is 212407933. The next prime is 212407963. The reversal of 212407952 is 259704212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5513 + ... + 21335.

It is an arithmetic number, because the mean of its divisors is an integer number (20602848).

Almost surely, 2^212407952 is an apocalyptic number.

It is an amenable number.

212407952 is a deficient number, since it is larger than the sum of its proper divisors (199649008).

212407952 is a wasteful number, since it uses less digits than its factorization.

212407952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16670 (or 16664 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 212407952 is about 14574.2221747852. Note that the first 3 decimals coincide. The cubic root of 212407952 is about 596.6554205857.

It can be divided in two parts, 21240 and 7952, that added together give a palindrome (29192).

The spelling of 212407952 in words is "two hundred twelve million, four hundred seven thousand, nine hundred fifty-two".