1618944 has 88 divisors (see below), whose sum is σ = 4716288. Its totient is φ = 491520.

The previous prime is 1618943. The next prime is 1618957. The reversal of 1618944 is 4498161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52209 + ... + 52239.

2^1618944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1618944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358144).

1618944 is an abundant number, since it is smaller than the sum of its proper divisors (3097344).

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

1618944 is a wasteful number, since it uses less digits than its factorization.

1618944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 53 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1618944 is about 1272.3773025325. The cubic root of 1618944 is about 117.4205045509.

The spelling of 1618944 in words is "one million, six hundred eighteen thousand, nine hundred forty-four".