1972942 has 4 divisors (see below), whose sum is σ = 2959416. Its totient is φ = 986470.

The previous prime is 1972939. The next prime is 1972967. The reversal of 1972942 is 2492791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2492791 = 7 ⋅356113.

It is a junction number, because it is equal to n+sod(n) for n = 1972898 and 1972907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493234 + ... + 493237.

It is an arithmetic number, because the mean of its divisors is an integer number (739854).

2^1972942 is an apocalyptic number.

1972942 is a deficient number, since it is larger than the sum of its proper divisors (986474).

1972942 is an equidigital number, since it uses as much as digits as its factorization.

1972942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986473.

The product of its digits is 9072, while the sum is 34.

The square root of 1972942 is about 1404.6145378715. The cubic root of 1972942 is about 125.4213408461.

The spelling of 1972942 in words is "one million, nine hundred seventy-two thousand, nine hundred forty-two".