213478212 has 24 divisors (see below), whose sum is σ = 502954816. Its totient is φ = 70468128.

The previous prime is 213478211. The next prime is 213478219. The reversal of 213478212 is 212874312.

213478212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213478212.

It is not an unprimeable number, because it can be changed into a prime (213478211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85123 + ... + 87594.

Almost surely, 2^213478212 is an apocalyptic number.

It is an amenable number.

213478212 is an abundant number, since it is smaller than the sum of its proper divisors (289476604).

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

213478212 is a wasteful number, since it uses less digits than its factorization.

213478212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172827 (or 172825 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 213478212 is about 14610.8936071686. The cubic root of 213478212 is about 597.6558647545.

The spelling of 213478212 in words is "two hundred thirteen million, four hundred seventy-eight thousand, two hundred twelve".