1826730 has 24 divisors (see below), whose sum is σ = 4749732. Its totient is φ = 487104.

The previous prime is 1826723. The next prime is 1826743. The reversal of 1826730 is 376281.

It can be written as a sum of positive squares in 2 ways, for example, as 1814409 + 12321 = 1347^2 + 111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1826694 and 1826703.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10059 + ... + 10238.

2^1826730 is an apocalyptic number.

1826730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1826730 is an abundant number, since it is smaller than the sum of its proper divisors (2923002).

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

1826730 is a wasteful number, since it uses less digits than its factorization.

1826730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310 (or 20307 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1826730 is about 1351.5657586666. The cubic root of 1826730 is about 122.2432216749.

It can be divided in two parts, 1826 and 730, that added together give a triangular number (2556 = T₇₁).

The spelling of 1826730 in words is "one million, eight hundred twenty-six thousand, seven hundred thirty".