212469620 has 48 divisors (see below), whose sum is σ = 495028800. Its totient is φ = 75947520.

The previous prime is 212469619. The next prime is 212469623. The reversal of 212469620 is 26964212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212469623) 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 15 ways as a sum of consecutive naturals, for example, 4796 + ... + 21164.

It is an arithmetic number, because the mean of its divisors is an integer number (10313100).

Almost surely, 2^212469620 is an apocalyptic number.

212469620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212469620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247514400).

212469620 is an abundant number, since it is smaller than the sum of its proper divisors (282559180).

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

212469620 is a wasteful number, since it uses less digits than its factorization.

212469620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16448 (or 16446 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 212469620 is about 14576.3376744640. The cubic root of 212469620 is about 596.7131569461.

It can be divided in two parts, 21 and 2469620, that multiplied together give a triangular number (51862020 = T₁₀₁₈₄).

The spelling of 212469620 in words is "two hundred twelve million, four hundred sixty-nine thousand, six hundred twenty".