1832640 has 112 divisors (see below), whose sum is σ = 6144768. Its totient is φ = 461824.

The previous prime is 1832629. The next prime is 1832641. The reversal of 1832640 is 462381.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1832640.

It is not an unprimeable number, because it can be changed into a prime (1832641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22039 + ... + 22121.

It is an arithmetic number, because the mean of its divisors is an integer number (54864).

2^1832640 is an apocalyptic number.

1832640 is a gapful number since it is divisible by the number (10) 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 1832640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3072384).

1832640 is an abundant number, since it is smaller than the sum of its proper divisors (4312128).

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

1832640 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 1832640 = (3402816)₉.

1832640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1832640 is about 1353.7503462603. The cubic root of 1832640 is about 122.3749104883.

The spelling of 1832640 in words is "one million, eight hundred thirty-two thousand, six hundred forty".