1942438 has 8 divisors (see below), whose sum is σ = 2921688. Its totient is φ = 968544.

The previous prime is 1942433. The next prime is 1942441. The reversal of 1942438 is 8342491.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256 + ... + 1987.

It is an arithmetic number, because the mean of its divisors is an integer number (365211).

2^1942438 is an apocalyptic number.

1942438 is a deficient number, since it is larger than the sum of its proper divisors (979250).

1942438 is a wasteful number, since it uses less digits than its factorization.

1942438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678.

The product of its digits is 6912, while the sum is 31.

The square root of 1942438 is about 1393.7137439230. The cubic root of 1942438 is about 124.7715935649.

The spelling of 1942438 in words is "one million, nine hundred forty-two thousand, four hundred thirty-eight".