1866274 has 8 divisors (see below), whose sum is σ = 2805660. Its totient is φ = 931056.

The previous prime is 1866269. The next prime is 1866281. The reversal of 1866274 is 4726681.

It can be written as a sum of positive squares in 2 ways, for example, as 1580049 + 286225 = 1257^2 + 535^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592 + ... + 2020.

2^1866274 is an apocalyptic number.

1866274 is a deficient number, since it is larger than the sum of its proper divisors (939386).

1866274 is a wasteful number, since it uses less digits than its factorization.

1866274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084.

The product of its digits is 16128, while the sum is 34.

The square root of 1866274 is about 1366.1163932843. The cubic root of 1866274 is about 123.1190158308.

The spelling of 1866274 in words is "one million, eight hundred sixty-six thousand, two hundred seventy-four".