212370420 has 24 divisors (see below), whose sum is σ = 594637344. Its totient is φ = 56632096.

The previous prime is 212370419. The next prime is 212370427. The reversal of 212370420 is 24073212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212370427) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1769694 + ... + 1769813.

It is an arithmetic number, because the mean of its divisors is an integer number (24776556).

Almost surely, 2^212370420 is an apocalyptic number.

212370420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212370420 is an abundant number, since it is smaller than the sum of its proper divisors (382266924).

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

212370420 is a wasteful number, since it uses less digits than its factorization.

212370420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539519 (or 3539517 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 212370420 is about 14572.9345020143. The cubic root of 212370420 is about 596.6202759656.

The spelling of 212370420 in words is "two hundred twelve million, three hundred seventy thousand, four hundred twenty".