1974530 has 8 divisors (see below), whose sum is σ = 3554172. Its totient is φ = 789808.

The previous prime is 1974503. The next prime is 1974541. The reversal of 1974530 is 354791.

It can be written as a sum of positive squares in 2 ways, for example, as 1885129 + 89401 = 1373^2 + 299^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1974493 and 1974502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98717 + ... + 98736.

2^1974530 is an apocalyptic number.

1974530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1974530 is a deficient number, since it is larger than the sum of its proper divisors (1579642).

1974530 is a wasteful number, since it uses less digits than its factorization.

1974530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197460.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1974530 is about 1405.1797038102. The cubic root of 1974530 is about 125.4549819223.

The spelling of 1974530 in words is "one million, nine hundred seventy-four thousand, five hundred thirty".