212376340 has 48 divisors (see below), whose sum is σ = 489343680. Its totient is φ = 76782080.

The previous prime is 212376331. The next prime is 212376343. The reversal of 212376340 is 43673212.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 212376299 and 212376308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212376343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36684 + ... + 42076.

It is an arithmetic number, because the mean of its divisors is an integer number (10194660).

Almost surely, 2^212376340 is an apocalyptic number.

212376340 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 212376340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244671840).

212376340 is an abundant number, since it is smaller than the sum of its proper divisors (276967340).

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

212376340 is a wasteful number, since it uses less digits than its factorization.

212376340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592 (or 5590 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 212376340 is about 14573.1376168621. The cubic root of 212376340 is about 596.6258196742.

The spelling of 212376340 in words is "two hundred twelve million, three hundred seventy-six thousand, three hundred forty".