1867680212 has 6 divisors (see below), whose sum is σ = 3268440378. Its totient is φ = 933840104.

The previous prime is 1867680211. The next prime is 1867680251. The reversal of 1867680212 is 2120867681.

It can be written as a sum of positive squares in only one way, i.e., 1625379856 + 242300356 = 40316^2 + 15566^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1867680212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1867680211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233460023 + ... + 233460030.

It is an arithmetic number, because the mean of its divisors is an integer number (544740063).

Almost surely, 2^1867680212 is an apocalyptic number.

It is an amenable number.

1867680212 is a deficient number, since it is larger than the sum of its proper divisors (1400760166).

1867680212 is a wasteful number, since it uses less digits than its factorization.

1867680212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466920057 (or 466920055 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 1867680212 is about 43216.6659056434. The cubic root of 1867680212 is about 1231.4993090042.

The spelling of 1867680212 in words is "one billion, eight hundred sixty-seven million, six hundred eighty thousand, two hundred twelve".