212465426 has 8 divisors (see below), whose sum is σ = 329687820. Its totient is φ = 102569488.

The previous prime is 212465419. The next prime is 212465471. The reversal of 212465426 is 624564212.

It can be written as a sum of positive squares in 2 ways, for example, as 204061225 + 8404201 = 14285^2 + 2899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212465426² = 90283114490722952, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212465392 and 212465401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831541 + ... + 1831656.

Almost surely, 2^212465426 is an apocalyptic number.

212465426 is a deficient number, since it is larger than the sum of its proper divisors (117222394).

212465426 is a wasteful number, since it uses less digits than its factorization.

212465426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663228.

The product of its digits is 23040, while the sum is 32.

The square root of 212465426 is about 14576.1938104568. The cubic root of 212465426 is about 596.7092306884.

The spelling of 212465426 in words is "two hundred twelve million, four hundred sixty-five thousand, four hundred twenty-six".