212607428 has 12 divisors (see below), whose sum is σ = 405886992. Its totient is φ = 96639720.

The previous prime is 212607391. The next prime is 212607431. The reversal of 212607428 is 824706212.

It is a junction number, because it is equal to n+sod(n) for n = 212607394 and 212607403.

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, 2415950 + ... + 2416037.

It is an arithmetic number, because the mean of its divisors is an integer number (33823916).

Almost surely, 2^212607428 is an apocalyptic number.

It is an amenable number.

212607428 is a deficient number, since it is larger than the sum of its proper divisors (193279564).

212607428 is a wasteful number, since it uses less digits than its factorization.

212607428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832002 (or 4832000 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 212607428 is about 14581.0640215315. The cubic root of 212607428 is about 596.8421386402.

The spelling of 212607428 in words is "two hundred twelve million, six hundred seven thousand, four hundred twenty-eight".