1943742 has 8 divisors (see below), whose sum is σ = 3887496. Its totient is φ = 647912.

The previous prime is 1943723. The next prime is 1943743. The reversal of 1943742 is 2473491.

It is a happy number.

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

1943742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1943743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161973 + ... + 161984.

It is an arithmetic number, because the mean of its divisors is an integer number (485937).

2^1943742 is an apocalyptic number.

1943742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1943742 is a wasteful number, since it uses less digits than its factorization.

1943742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323962.

The product of its digits is 6048, while the sum is 30.

The square root of 1943742 is about 1394.1814802959. The cubic root of 1943742 is about 124.7995079287.

It can be divided in two parts, 194374 and 2, that added together give a triangular number (194376 = T₆₂₃).

The spelling of 1943742 in words is "one million, nine hundred forty-three thousand, seven hundred forty-two".