1922830 has 32 divisors (see below), whose sum is σ = 4261824. Its totient is φ = 608256.

The previous prime is 1922821. The next prime is 1922863. The reversal of 1922830 is 382291.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1922795 and 1922804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147 + ... + 1966.

It is an arithmetic number, because the mean of its divisors is an integer number (133182).

2^1922830 is an apocalyptic number.

1922830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1922830 is an abundant number, since it is smaller than the sum of its proper divisors (2338994).

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

1922830 is a wasteful number, since it uses less digits than its factorization.

1922830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1922830 is about 1386.6614583236. The cubic root of 1922830 is about 124.3503360099.

The spelling of 1922830 in words is "one million, nine hundred twenty-two thousand, eight hundred thirty".