208402634 has 8 divisors (see below), whose sum is σ = 341022528. Its totient is φ = 94728460.

The previous prime is 208402627. The next prime is 208402637. The reversal of 208402634 is 436204802.

208402634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 208402597 and 208402606.

It is not an unprimeable number, because it can be changed into a prime (208402637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4736402 + ... + 4736445.

It is an arithmetic number, because the mean of its divisors is an integer number (42627816).

Almost surely, 2^208402634 is an apocalyptic number.

208402634 is a deficient number, since it is larger than the sum of its proper divisors (132619894).

208402634 is a wasteful number, since it uses less digits than its factorization.

208402634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9472860.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 208402634 is about 14436.1571756475. The cubic root of 208402634 is about 592.8812754819.

The spelling of 208402634 in words is "two hundred eight million, four hundred two thousand, six hundred thirty-four".