1970542 has 16 divisors (see below), whose sum is σ = 3461472. Its totient is φ = 823680.

The previous prime is 1970531. The next prime is 1970543. The reversal of 1970542 is 2450791.

It is a happy number.

It is a d-powerful number, because it can be written as 1 + 9² + 7⁵ + 0 + 5⁹ + 4² + 2⁹ .

It is a self number, because there is not a number n which added to its sum of digits gives 1970542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970543) 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 in 7 ways as a sum of consecutive naturals, for example, 1143 + ... + 2290.

It is an arithmetic number, because the mean of its divisors is an integer number (216342).

2^1970542 is an apocalyptic number.

1970542 is a deficient number, since it is larger than the sum of its proper divisors (1490930).

1970542 is a wasteful number, since it uses less digits than its factorization.

1970542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1970542 is about 1403.7599509888. The cubic root of 1970542 is about 125.3704636356.

Subtracting 1970542 from its reverse (2450791), we obtain a square (480249 = 693²).

The spelling of 1970542 in words is "one million, nine hundred seventy thousand, five hundred forty-two".