212479660 has 24 divisors (see below), whose sum is σ = 469692720. Its totient is φ = 80518464.

The previous prime is 212479639. The next prime is 212479667. The reversal of 212479660 is 66974212.

212479660 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212479667) 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, 279199 + ... + 279958.

It is an arithmetic number, because the mean of its divisors is an integer number (19570530).

Almost surely, 2^212479660 is an apocalyptic number.

212479660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212479660 is an abundant number, since it is smaller than the sum of its proper divisors (257213060).

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

212479660 is a wasteful number, since it uses less digits than its factorization.

212479660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559185 (or 559183 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 212479660 is about 14576.6820641736. The cubic root of 212479660 is about 596.7225557890.

The spelling of 212479660 in words is "two hundred twelve million, four hundred seventy-nine thousand, six hundred sixty".