1840726 has 8 divisors (see below), whose sum is σ = 2923560. Its totient is φ = 866208.

The previous prime is 1840723. The next prime is 1840733. The reversal of 1840726 is 6270481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1840694 and 1840703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27036 + ... + 27103.

It is an arithmetic number, because the mean of its divisors is an integer number (365445).

2^1840726 is an apocalyptic number.

1840726 is a deficient number, since it is larger than the sum of its proper divisors (1082834).

1840726 is a wasteful number, since it uses less digits than its factorization.

1840726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54158.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1840726 is about 1356.7335773836. The cubic root of 1840726 is about 122.5546278638.

The spelling of 1840726 in words is "one million, eight hundred forty thousand, seven hundred twenty-six".