1864460645 has 8 divisors (see below), whose sum is σ = 2250751104. Its totient is φ = 1482636304.

The previous prime is 1864460603. The next prime is 1864460699. The reversal of 1864460645 is 5460644681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1864460645 - 2⁶ = 1864460581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1864460596 and 1864460605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115609 + ... + 1117278.

It is an arithmetic number, because the mean of its divisors is an integer number (281343888).

Almost surely, 2^1864460645 is an apocalyptic number.

It is an amenable number.

1864460645 is a deficient number, since it is larger than the sum of its proper divisors (386290459).

1864460645 is a wasteful number, since it uses less digits than its factorization.

1864460645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233059.

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 1864460645 is about 43179.4007021867. The cubic root of 1864460645 is about 1230.7912693434.

The spelling of 1864460645 in words is "one billion, eight hundred sixty-four million, four hundred sixty thousand, six hundred forty-five".