1674406 has 4 divisors (see below), whose sum is σ = 2511612. Its totient is φ = 837202.

The previous prime is 1674391. The next prime is 1674433. The reversal of 1674406 is 6044761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6044761 = 103 ⋅58687.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418600 + ... + 418603.

It is an arithmetic number, because the mean of its divisors is an integer number (627903).

2^1674406 is an apocalyptic number.

1674406 is a deficient number, since it is larger than the sum of its proper divisors (837206).

1674406 is an equidigital number, since it uses as much as digits as its factorization.

1674406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837205.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1674406 is about 1293.9884079852. The cubic root of 1674406 is about 118.7463467020.

It can be divided in two parts, 1674 and 406, that added together give a triangular number (2080 = T₆₄).

The spelling of 1674406 in words is "one million, six hundred seventy-four thousand, four hundred six".