212475428 has 12 divisors (see below), whose sum is σ = 405634992. Its totient is φ = 96579720.

The previous prime is 212475421. The next prime is 212475451. The reversal of 212475428 is 824574212.

It is not an unprimeable number, because it can be changed into a prime (212475421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2414450 + ... + 2414537.

It is an arithmetic number, because the mean of its divisors is an integer number (33802916).

Almost surely, 2^212475428 is an apocalyptic number.

It is an amenable number.

212475428 is a deficient number, since it is larger than the sum of its proper divisors (193159564).

212475428 is a wasteful number, since it uses less digits than its factorization.

212475428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829002 (or 4829000 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 212475428 is about 14576.5369001008. The cubic root of 212475428 is about 596.7185940818.

The spelling of 212475428 in words is "two hundred twelve million, four hundred seventy-five thousand, four hundred twenty-eight".