1618144 has 24 divisors (see below), whose sum is σ = 3476088. Its totient is φ = 735360.

The previous prime is 1618139. The next prime is 1618153. The reversal of 1618144 is 4418161.

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, 1947 + ... + 2650.

It is an arithmetic number, because the mean of its divisors is an integer number (144837).

2^1618144 is an apocalyptic number.

It is an amenable number.

1618144 is an abundant number, since it is smaller than the sum of its proper divisors (1857944).

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

1618144 is a wasteful number, since it uses less digits than its factorization.

1618144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618 (or 4610 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 1618144 is about 1272.0628915270. The cubic root of 1618144 is about 117.4011602786.

The spelling of 1618144 in words is "one million, six hundred eighteen thousand, one hundred forty-four".