1840736 has 48 divisors (see below), whose sum is σ = 3937248. Its totient is φ = 844800.

The previous prime is 1840733. The next prime is 1840747. The reversal of 1840736 is 6370481.

It is a junction number, because it is equal to n+sod(n) for n = 1840699 and 1840708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840733) 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, 30146 + ... + 30206.

It is an arithmetic number, because the mean of its divisors is an integer number (82026).

2^1840736 is an apocalyptic number.

1840736 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 1840736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968624).

1840736 is an abundant number, since it is smaller than the sum of its proper divisors (2096512).

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

1840736 is a wasteful number, since it uses less digits than its factorization.

1840736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1840736 is about 1356.7372627005. The cubic root of 1840736 is about 122.5548497951.

The spelling of 1840736 in words is "one million, eight hundred forty thousand, seven hundred thirty-six".