212478486 has 16 divisors (see below), whose sum is σ = 463589568. Its totient is φ = 64387400.

The previous prime is 212478467. The next prime is 212478491. The reversal of 212478486 is 684874212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609620 + ... + 1609751.

It is an arithmetic number, because the mean of its divisors is an integer number (28974348).

Almost surely, 2^212478486 is an apocalyptic number.

212478486 is an abundant number, since it is smaller than the sum of its proper divisors (251111082).

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

212478486 is a wasteful number, since it uses less digits than its factorization.

212478486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219387.

The product of its digits is 172032, while the sum is 42.

The square root of 212478486 is about 14576.6417943229. The cubic root of 212478486 is about 596.7214567762.

The spelling of 212478486 in words is "two hundred twelve million, four hundred seventy-eight thousand, four hundred eighty-six".