212559420 has 24 divisors (see below), whose sum is σ = 595166544. Its totient is φ = 56682496.

The previous prime is 212559419. The next prime is 212559469. The reversal of 212559420 is 24955212.

212559420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1771269 + ... + 1771388.

It is an arithmetic number, because the mean of its divisors is an integer number (24798606).

Almost surely, 2^212559420 is an apocalyptic number.

212559420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212559420 is an abundant number, since it is smaller than the sum of its proper divisors (382607124).

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

212559420 is a wasteful number, since it uses less digits than its factorization.

212559420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542669 (or 3542667 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 212559420 is about 14579.4176838446. The cubic root of 212559420 is about 596.7972117772.

The spelling of 212559420 in words is "two hundred twelve million, five hundred fifty-nine thousand, four hundred twenty".