212015604 has 48 divisors (see below), whose sum is σ = 528550400. Its totient is φ = 65948256.

The previous prime is 212015599. The next prime is 212015621. The reversal of 212015604 is 406510212.

212015604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 8337 + ... + 22215.

Almost surely, 2^212015604 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 212015604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264275200).

212015604 is an abundant number, since it is smaller than the sum of its proper divisors (316534796).

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

212015604 is a wasteful number, since it uses less digits than its factorization.

212015604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13972 (or 13970 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 212015604 is about 14560.7556122613. The cubic root of 212015604 is about 596.2878247346.

Adding to 212015604 its reverse (406510212), we get a palindrome (618525816).

The spelling of 212015604 in words is "two hundred twelve million, fifteen thousand, six hundred four".