208312052 has 12 divisors (see below), whose sum is σ = 392588196. Its totient is φ = 96144000.

The previous prime is 208312031. The next prime is 208312057. The reversal of 208312052 is 250213802.

It can be written as a sum of positive squares in 2 ways, for example, as 134420836 + 73891216 = 11594^2 + 8596^2 .

It is a super-2 number, since 2×208312052² = 86787822016901408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208312057) 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, 2002949 + ... + 2003052.

It is an arithmetic number, because the mean of its divisors is an integer number (32715683).

Almost surely, 2^208312052 is an apocalyptic number.

It is an amenable number.

208312052 is a deficient number, since it is larger than the sum of its proper divisors (184276144).

208312052 is a wasteful number, since it uses less digits than its factorization.

208312052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006018 (or 4006016 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 208312052 is about 14433.0195039015. The cubic root of 208312052 is about 592.7953646124.

Adding to 208312052 its reverse (250213802), we get a palindrome (458525854).

The spelling of 208312052 in words is "two hundred eight million, three hundred twelve thousand, fifty-two".