1957812 has 12 divisors (see below), whose sum is σ = 4568256. Its totient is φ = 652600.

The previous prime is 1957801. The next prime is 1957831. The reversal of 1957812 is 2187591.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81564 + ... + 81587.

It is an arithmetic number, because the mean of its divisors is an integer number (380688).

2^1957812 is an apocalyptic number.

1957812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1957812 is an abundant number, since it is smaller than the sum of its proper divisors (2610444).

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

1957812 is a wasteful number, since it uses less digits than its factorization.

1957812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163158 (or 163156 counting only the distinct ones).

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

The square root of 1957812 is about 1399.2183532244. The cubic root of 1957812 is about 125.0999094569.

The spelling of 1957812 in words is "one million, nine hundred fifty-seven thousand, eight hundred twelve".