1957404 has 12 divisors (see below), whose sum is σ = 4567304. Its totient is φ = 652464.

The previous prime is 1957391. The next prime is 1957441. The reversal of 1957404 is 4047591.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 81547 + ... + 81570.

2^1957404 is an apocalyptic number.

It is an amenable number.

1957404 is an abundant number, since it is smaller than the sum of its proper divisors (2609900).

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

1957404 is a wasteful number, since it uses less digits than its factorization.

1957404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163124 (or 163122 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1957404 is about 1399.0725499416. The cubic root of 1957404 is about 125.0912187503.

The spelling of 1957404 in words is "one million, nine hundred fifty-seven thousand, four hundred four".