208348040 has 16 divisors (see below), whose sum is σ = 468783180. Its totient is φ = 83339200.

The previous prime is 208348037. The next prime is 208348051. The reversal of 208348040 is 40843802.

It can be written as a sum of positive squares in 2 ways, for example, as 196056004 + 12292036 = 14002^2 + 3506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 208347994 and 208348012.

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, 2604311 + ... + 2604390.

Almost surely, 2^208348040 is an apocalyptic number.

208348040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208348040 is an abundant number, since it is smaller than the sum of its proper divisors (260435140).

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

208348040 is a wasteful number, since it uses less digits than its factorization.

208348040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208712 (or 5208708 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 208348040 is about 14434.2661746277. The cubic root of 208348040 is about 592.8294997652.

The spelling of 208348040 in words is "two hundred eight million, three hundred forty-eight thousand, forty".