212990088 has 64 divisors (see below), whose sum is σ = 561438720. Its totient is φ = 67233600.

The previous prime is 212990047. The next prime is 212990111. The reversal of 212990088 is 880099212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31923 + ... + 38013.

It is an arithmetic number, because the mean of its divisors is an integer number (8772480).

Almost surely, 2^212990088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212990088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280719360).

212990088 is an abundant number, since it is smaller than the sum of its proper divisors (348448632).

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

212990088 is a wasteful number, since it uses less digits than its factorization.

212990088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178 (or 6174 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 212990088 is about 14594.1799358511. The cubic root of 212990088 is about 597.1999980859.

The spelling of 212990088 in words is "two hundred twelve million, nine hundred ninety thousand, eighty-eight".