1868307 has 16 divisors (see below), whose sum is σ = 2914560. Its totient is φ = 1042272.

The previous prime is 1868291. The next prime is 1868309. The reversal of 1868307 is 7038681.

It is not a de Polignac number, because 1868307 - 2⁴ = 1868291 is a prime.

1868307 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1868309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132 + ... + 1937.

It is an arithmetic number, because the mean of its divisors is an integer number (182160).

2^1868307 is an apocalyptic number.

1868307 is a deficient number, since it is larger than the sum of its proper divisors (1046253).

1868307 is a wasteful number, since it uses less digits than its factorization.

1868307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1868307 is about 1366.8602708397. The cubic root of 1868307 is about 123.1637056115.

The spelling of 1868307 in words is "one million, eight hundred sixty-eight thousand, three hundred seven".