208734040 has 32 divisors (see below), whose sum is σ = 480577680. Its totient is φ = 81551232.

The previous prime is 208734023. The next prime is 208734089. The reversal of 208734040 is 40437802.

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, 58959 + ... + 62398.

Almost surely, 2^208734040 is an apocalyptic number.

208734040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208734040 is an abundant number, since it is smaller than the sum of its proper divisors (271843640).

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

208734040 is a wasteful number, since it uses less digits than its factorization.

208734040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121411 (or 121407 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 208734040 is about 14447.6309476675. The cubic root of 208734040 is about 593.1953795617.

The spelling of 208734040 in words is "two hundred eight million, seven hundred thirty-four thousand, forty".