1974026 has 4 divisors (see below), whose sum is σ = 2961042. Its totient is φ = 987012.

The previous prime is 1973999. The next prime is 1974029. The reversal of 1974026 is 6204791.

It is a Cunningham number, because it is equal to 1405²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6204791 = 929 ⋅6679.

It can be written as a sum of positive squares in only one way, i.e., 1974025 + 1 = 1405^2 + 1^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1974026.

It is not an unprimeable number, because it can be changed into a prime (1974029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493505 + ... + 493508.

2^1974026 is an apocalyptic number.

1974026 is a deficient number, since it is larger than the sum of its proper divisors (987016).

1974026 is an equidigital number, since it uses as much as digits as its factorization.

1974026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987015.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1974026 is about 1405.0003558718. Note that the first 3 decimals coincide. The cubic root of 1974026 is about 125.4443068602. Note that the first 3 decimals are identical.

The spelling of 1974026 in words is "one million, nine hundred seventy-four thousand, twenty-six".