208252190 has 32 divisors (see below), whose sum is σ = 389460960. Its totient is φ = 80080000.

The previous prime is 208252181. The next prime is 208252259. The reversal of 208252190 is 91252802.

It is a super-2 number, since 2×208252190² = 86737949279592200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71360 + ... + 74220.

It is an arithmetic number, because the mean of its divisors is an integer number (12170655).

Almost surely, 2^208252190 is an apocalyptic number.

208252190 is a deficient number, since it is larger than the sum of its proper divisors (181208770).

208252190 is a wasteful number, since it uses less digits than its factorization.

208252190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 208252190 is about 14430.9455684650. The cubic root of 208252190 is about 592.7385759061.

The spelling of 208252190 in words is "two hundred eight million, two hundred fifty-two thousand, one hundred ninety".