1845274 has 4 divisors (see below), whose sum is σ = 2767914. Its totient is φ = 922636.

The previous prime is 1845271. The next prime is 1845289. The reversal of 1845274 is 4725481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4725481 = 443 ⋅10667.

It can be written as a sum of positive squares in only one way, i.e., 1580049 + 265225 = 1257^2 + 515^2 .

It is a super-2 number, since 2×1845274² = 6810072270152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1845271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461317 + ... + 461320.

2^1845274 is an apocalyptic number.

1845274 is a deficient number, since it is larger than the sum of its proper divisors (922640).

1845274 is an equidigital number, since it uses as much as digits as its factorization.

1845274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922639.

The product of its digits is 8960, while the sum is 31.

The square root of 1845274 is about 1358.4086277700. The cubic root of 1845274 is about 122.6554793804.

The spelling of 1845274 in words is "one million, eight hundred forty-five thousand, two hundred seventy-four".