208225426 has 4 divisors (see below), whose sum is σ = 312338142. Its totient is φ = 104112712.

The previous prime is 208225411. The next prime is 208225471. The reversal of 208225426 is 624522802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624522802 = 2 ⋅312261401.

It can be written as a sum of positive squares in only one way, i.e., 191407225 + 16818201 = 13835^2 + 4101^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52056355 + ... + 52056358.

Almost surely, 2^208225426 is an apocalyptic number.

208225426 is a deficient number, since it is larger than the sum of its proper divisors (104112716).

208225426 is a wasteful number, since it uses less digits than its factorization.

208225426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104112715.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 208225426 is about 14430.0182259067. The cubic root of 208225426 is about 592.7131824399.

The spelling of 208225426 in words is "two hundred eight million, two hundred twenty-five thousand, four hundred twenty-six".