1825616 has 40 divisors (see below), whose sum is σ = 3895584. Its totient is φ = 823680.

The previous prime is 1825601. The next prime is 1825627. The reversal of 1825616 is 6165281.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13871 + ... + 14001.

2^1825616 is an apocalyptic number.

1825616 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 1825616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947792).

1825616 is an abundant number, since it is smaller than the sum of its proper divisors (2069968).

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

1825616 is a wasteful number, since it uses less digits than its factorization.

1825616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 213 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 1825616 is about 1351.1535812039. The cubic root of 1825616 is about 122.2183673103.

The spelling of 1825616 in words is "one million, eight hundred twenty-five thousand, six hundred sixteen".