1865264 has 10 divisors (see below), whose sum is σ = 3613980. Its totient is φ = 932624.

The previous prime is 1865263. The next prime is 1865267. The reversal of 1865264 is 4625681.

It is a self number, because there is not a number n which added to its sum of digits gives 1865264.

It is not an unprimeable number, because it can be changed into a prime (1865261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58274 + ... + 58305.

It is an arithmetic number, because the mean of its divisors is an integer number (361398).

2^1865264 is an apocalyptic number.

It is an amenable number.

1865264 is a deficient number, since it is larger than the sum of its proper divisors (1748716).

1865264 is a wasteful number, since it uses less digits than its factorization.

1865264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116587 (or 116581 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1865264 is about 1365.7466822219. The cubic root of 1865264 is about 123.0968017571.

The spelling of 1865264 in words is "one million, eight hundred sixty-five thousand, two hundred sixty-four".