2057618 has 4 divisors (see below), whose sum is σ = 3086430. Its totient is φ = 1028808.

The previous prime is 2057611. The next prime is 2057633. The reversal of 2057618 is 8167502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2007889 + 49729 = 1417^2 + 223^2 .

It is not an unprimeable number, because it can be changed into a prime (2057611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514403 + ... + 514406.

2^2057618 is an apocalyptic number.

2057618 is a deficient number, since it is larger than the sum of its proper divisors (1028812).

2057618 is a wasteful number, since it uses less digits than its factorization.

2057618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028811.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2057618 is about 1434.4399604027. The cubic root of 2057618 is about 127.1905709425.

The spelling of 2057618 in words is "two million, fifty-seven thousand, six hundred eighteen".