1957042 has 4 divisors (see below), whose sum is σ = 2935566. Its totient is φ = 978520.

The previous prime is 1957037. The next prime is 1957049. The reversal of 1957042 is 2407591.

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: 2407591 = 17 ⋅141623.

It can be written as a sum of positive squares in only one way, i.e., 1018081 + 938961 = 1009^2 + 969^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1957042.

It is not an unprimeable number, because it can be changed into a prime (1957049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489259 + ... + 489262.

2^1957042 is an apocalyptic number.

1957042 is a deficient number, since it is larger than the sum of its proper divisors (978524).

1957042 is an equidigital number, since it uses as much as digits as its factorization.

1957042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978523.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1957042 is about 1398.9431725413. The cubic root of 1957042 is about 125.0835068671.

The spelling of 1957042 in words is "one million, nine hundred fifty-seven thousand, forty-two".