212341506 has 64 divisors (see below), whose sum is σ = 476292096. Its totient is φ = 62668800.

The previous prime is 212341489. The next prime is 212341513. The reversal of 212341506 is 605143212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330946 + ... + 331586.

It is an arithmetic number, because the mean of its divisors is an integer number (7442064).

Almost surely, 2^212341506 is an apocalyptic number.

212341506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212341506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238146048).

212341506 is an abundant number, since it is smaller than the sum of its proper divisors (263950590).

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

212341506 is a wasteful number, since it uses less digits than its factorization.

212341506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 212341506 is about 14571.9424237128. The cubic root of 212341506 is about 596.5931983377.

Adding to 212341506 its reverse (605143212), we get a palindrome (817484718).

The spelling of 212341506 in words is "two hundred twelve million, three hundred forty-one thousand, five hundred six".