1820348 has 12 divisors (see below), whose sum is σ = 3195192. Its totient is φ = 907440.

The previous prime is 1820347. The next prime is 1820353. The reversal of 1820348 is 8430281.

It is a super-2 number, since 2×1820348² = 6627333682208, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886 + ... + 2682.

It is an arithmetic number, because the mean of its divisors is an integer number (266266).

2^1820348 is an apocalyptic number.

It is an amenable number.

1820348 is a deficient number, since it is larger than the sum of its proper divisors (1374844).

1820348 is a wasteful number, since it uses less digits than its factorization.

1820348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1820348 is about 1349.2027275395. The cubic root of 1820348 is about 122.1006962250.

The spelling of 1820348 in words is "one million, eight hundred twenty thousand, three hundred forty-eight".