1974942 has 40 divisors (see below), whose sum is σ = 4512816. Its totient is φ = 645408.

The previous prime is 1974937. The next prime is 1974961. The reversal of 1974942 is 2494791.

It is a junction number, because it is equal to n+sod(n) for n = 1974897 and 1974906.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 11743 + ... + 11909.

2^1974942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2256408).

1974942 is an abundant number, since it is smaller than the sum of its proper divisors (2537874).

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

1974942 is a wasteful number, since it uses less digits than its factorization.

1974942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 245 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1974942 is about 1405.3262966301. The cubic root of 1974942 is about 125.4637070127.

It can be divided in two parts, 19749 and 42, that added together give a palindrome (19791).

The spelling of 1974942 in words is "one million, nine hundred seventy-four thousand, nine hundred forty-two".