1838630 has 16 divisors (see below), whose sum is σ = 3484080. Its totient is φ = 696672.

The previous prime is 1838621. The next prime is 1838659. The reversal of 1838630 is 368381.

It is a junction number, because it is equal to n+sod(n) for n = 1838593 and 1838602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4649 + ... + 5028.

It is an arithmetic number, because the mean of its divisors is an integer number (217755).

2^1838630 is an apocalyptic number.

1838630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1838630 is a deficient number, since it is larger than the sum of its proper divisors (1645450).

1838630 is a wasteful number, since it uses less digits than its factorization.

1838630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1838630 is about 1355.9609138910. The cubic root of 1838630 is about 122.5080933151.

The spelling of 1838630 in words is "one million, eight hundred thirty-eight thousand, six hundred thirty".