212196426 has 64 divisors (see below), whose sum is σ = 476184576. Its totient is φ = 62596800.

The previous prime is 212196409. The next prime is 212196433. The reversal of 212196426 is 624691212.

212196426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 306741 + ... + 307431.

It is an arithmetic number, because the mean of its divisors is an integer number (7440384).

Almost surely, 2^212196426 is an apocalyptic number.

212196426 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 212196426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238092288).

212196426 is an abundant number, since it is smaller than the sum of its proper divisors (263988150).

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

212196426 is a wasteful number, since it uses less digits than its factorization.

212196426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its digits is 10368, while the sum is 33.

The square root of 212196426 is about 14566.9635133751. The cubic root of 212196426 is about 596.4572954666.

The spelling of 212196426 in words is "two hundred twelve million, one hundred ninety-six thousand, four hundred twenty-six".