212071470 has 32 divisors (see below), whose sum is σ = 548124192. Its totient is φ = 52202112.

The previous prime is 212071451. The next prime is 212071493. The reversal of 212071470 is 74170212.

It is a self number, because there is not a number n which added to its sum of digits gives 212071470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271497 + ... + 272276.

It is an arithmetic number, because the mean of its divisors is an integer number (17128881).

Almost surely, 2^212071470 is an apocalyptic number.

212071470 is an abundant number, since it is smaller than the sum of its proper divisors (336052722).

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

212071470 is a wasteful number, since it uses less digits than its factorization.

212071470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543796.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 212071470 is about 14562.6738616231. The cubic root of 212071470 is about 596.3401939777.

The spelling of 212071470 in words is "two hundred twelve million, seventy-one thousand, four hundred seventy".