1618896 has 40 divisors (see below), whose sum is σ = 4330080. Its totient is φ = 520576.

The previous prime is 1618891. The next prime is 1618909. The reversal of 1618896 is 6988161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618891) 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, 811 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (108252).

2^1618896 is an apocalyptic number.

1618896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1618896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2165040).

1618896 is an abundant number, since it is smaller than the sum of its proper divisors (2711184).

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

1618896 is a wasteful number, since it uses less digits than its factorization.

1618896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1197 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 1618896 is about 1272.3584400632. The cubic root of 1618896 is about 117.4193440743.

The spelling of 1618896 in words is "one million, six hundred eighteen thousand, eight hundred ninety-six".