1972342 has 16 divisors (see below), whose sum is σ = 3149280. Its totient is φ = 924352.

The previous prime is 1972307. The next prime is 1972343. The reversal of 1972342 is 2432791.

It is a self number, because there is not a number n which added to its sum of digits gives 1972342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972343) 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, 2034 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (196830).

2^1972342 is an apocalyptic number.

1972342 is a deficient number, since it is larger than the sum of its proper divisors (1176938).

1972342 is a wasteful number, since it uses less digits than its factorization.

1972342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887.

The product of its digits is 3024, while the sum is 28.

The square root of 1972342 is about 1404.4009399028. The cubic root of 1972342 is about 125.4086254133.

It can be divided in two parts, 19 and 72342, that added together give a square (72361 = 269²).

The spelling of 1972342 in words is "one million, nine hundred seventy-two thousand, three hundred forty-two".