1868560 has 20 divisors (see below), whose sum is σ = 4344588. Its totient is φ = 747392.

The previous prime is 1868549. The next prime is 1868561. The reversal of 1868560 is 658681.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 753424 = 1056^2 + 868^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1868561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11599 + ... + 11758.

2^1868560 is an apocalyptic number.

1868560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868560 is an abundant number, since it is smaller than the sum of its proper divisors (2476028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1868560 is a wasteful number, since it uses less digits than its factorization.

1868560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23370 (or 23364 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1868560 is about 1366.9528155719. The cubic root of 1868560 is about 123.1692648354.

The spelling of 1868560 in words is "one million, eight hundred sixty-eight thousand, five hundred sixty".