208461478 has 16 divisors (see below), whose sum is σ = 321819264. Its totient is φ = 101200320.

The previous prime is 208461469. The next prime is 208461481. The reversal of 208461478 is 874164802.

It is a self number, because there is not a number n which added to its sum of digits gives 208461478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35851 + ... + 41257.

It is an arithmetic number, because the mean of its divisors is an integer number (20113704).

Almost surely, 2^208461478 is an apocalyptic number.

208461478 is a deficient number, since it is larger than the sum of its proper divisors (113357786).

208461478 is a wasteful number, since it uses less digits than its factorization.

208461478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 208461478 is about 14438.1951088077. The cubic root of 208461478 is about 592.9370716780.

The spelling of 208461478 in words is "two hundred eight million, four hundred sixty-one thousand, four hundred seventy-eight".