208319012 has 12 divisors (see below), whose sum is σ = 397700016. Its totient is φ = 94690440.

The previous prime is 208318997. The next prime is 208319051. The reversal of 208319012 is 210913802.

It is a super-2 number, since 2×208319012² = 86793621521312288, which contains 22 as substring.

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, 2367218 + ... + 2367305.

It is an arithmetic number, because the mean of its divisors is an integer number (33141668).

Almost surely, 2^208319012 is an apocalyptic number.

208319012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

208319012 is a deficient number, since it is larger than the sum of its proper divisors (189381004).

208319012 is a wasteful number, since it uses less digits than its factorization.

208319012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734538 (or 4734536 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 208319012 is about 14433.2606156752. The cubic root of 208319012 is about 592.8019665825.

The spelling of 208319012 in words is "two hundred eight million, three hundred nineteen thousand, twelve".