1823130 has 48 divisors (see below), whose sum is σ = 4852224. Its totient is φ = 474720.

The previous prime is 1823123. The next prime is 1823149. The reversal of 1823130 is 313281.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4015 + ... + 4445.

It is an arithmetic number, because the mean of its divisors is an integer number (101088).

2^1823130 is an apocalyptic number.

1823130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1823130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2426112).

1823130 is an abundant number, since it is smaller than the sum of its proper divisors (3029094).

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

1823130 is a wasteful number, since it uses less digits than its factorization.

1823130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1823130 is about 1350.2333131722. The cubic root of 1823130 is about 122.1628658833.

It can be divided in two parts, 1823 and 130, that added together give a triangular number (1953 = T₆₂).

The spelling of 1823130 in words is "one million, eight hundred twenty-three thousand, one hundred thirty".