1957128 has 16 divisors (see below), whose sum is σ = 4892880. Its totient is φ = 652368.

The previous prime is 1957121. The next prime is 1957129. The reversal of 1957128 is 8217591.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1957121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40750 + ... + 40797.

It is an arithmetic number, because the mean of its divisors is an integer number (305805).

2^1957128 is an apocalyptic number.

It is an amenable number.

1957128 is an abundant number, since it is smaller than the sum of its proper divisors (2935752).

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

1957128 is a wasteful number, since it uses less digits than its factorization.

1957128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81556 (or 81552 counting only the distinct ones).

The product of its digits is 5040, while the sum is 33.

The square root of 1957128 is about 1398.9739096924. The cubic root of 1957128 is about 125.0853390580.

The spelling of 1957128 in words is "one million, nine hundred fifty-seven thousand, one hundred twenty-eight".