1807684345 has 16 divisors (see below), whose sum is σ = 2189168640. Its totient is φ = 1432880064.

The previous prime is 1807684313. The next prime is 1807684349. The reversal of 1807684345 is 5434867081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1807684345 - 2⁵ = 1807684313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1807684295 and 1807684304.

It is not an unprimeable number, because it can be changed into a prime (1807684349) 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, 677484 + ... + 680146.

It is an arithmetic number, because the mean of its divisors is an integer number (136823040).

Almost surely, 2^1807684345 is an apocalyptic number.

It is an amenable number.

1807684345 is a deficient number, since it is larger than the sum of its proper divisors (381484295).

1807684345 is a wasteful number, since it uses less digits than its factorization.

1807684345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 1807684345 is about 42516.8712983446. The cubic root of 1807684345 is about 1218.1689689936.

The spelling of 1807684345 in words is "one billion, eight hundred seven million, six hundred eighty-four thousand, three hundred forty-five".