1947942 has 16 divisors (see below), whose sum is σ = 4328880. Its totient is φ = 649296.

The previous prime is 1947941. The next prime is 1947971. The reversal of 1947942 is 2497491.

It is a junction number, because it is equal to n+sod(n) for n = 1947897 and 1947906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1947941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17983 + ... + 18090.

It is an arithmetic number, because the mean of its divisors is an integer number (270555).

2^1947942 is an apocalyptic number.

1947942 is an abundant number, since it is smaller than the sum of its proper divisors (2380938).

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

1947942 is a wasteful number, since it uses less digits than its factorization.

1947942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36084 (or 36078 counting only the distinct ones).

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

The square root of 1947942 is about 1395.6869276453. The cubic root of 1947942 is about 124.8893313819.

It can be divided in two parts, 19 and 47942, that added together give a square (47961 = 219²).

The spelling of 1947942 in words is "one million, nine hundred forty-seven thousand, nine hundred forty-two".