1940642 has 8 divisors (see below), whose sum is σ = 3175632. Its totient is φ = 882100.

The previous prime is 1940639. The next prime is 1940663. The reversal of 1940642 is 2460491.

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

It is an unprimeable number.

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, 44084 + ... + 44127.

It is an arithmetic number, because the mean of its divisors is an integer number (396954).

2^1940642 is an apocalyptic number.

1940642 is a deficient number, since it is larger than the sum of its proper divisors (1234990).

1940642 is a wasteful number, since it uses less digits than its factorization.

1940642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88224.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1940642 is about 1393.0692732237. The cubic root of 1940642 is about 124.7331266343.

The spelling of 1940642 in words is "one million, nine hundred forty thousand, six hundred forty-two".