1969942 has 8 divisors (see below), whose sum is σ = 3182256. Its totient is φ = 909192.

The previous prime is 1969921. The next prime is 1969949. The reversal of 1969942 is 2499691.

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

It is a junction number, because it is equal to n+sod(n) for n = 1969895 and 1969904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969949) 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 3 ways as a sum of consecutive naturals, for example, 37858 + ... + 37909.

It is an arithmetic number, because the mean of its divisors is an integer number (397782).

2^1969942 is an apocalyptic number.

1969942 is a deficient number, since it is larger than the sum of its proper divisors (1212314).

1969942 is a wasteful number, since it uses less digits than its factorization.

1969942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75782.

The product of its digits is 34992, while the sum is 40.

The square root of 1969942 is about 1403.5462229652. The cubic root of 1969942 is about 125.3577378789.

The spelling of 1969942 in words is "one million, nine hundred sixty-nine thousand, nine hundred forty-two".