1800468 has 30 divisors (see below), whose sum is σ = 4707626. Its totient is φ = 600048.

The previous prime is 1800451. The next prime is 1800473. The reversal of 1800468 is 8640081.

It can be written as a sum of positive squares in only one way, i.e., 1774224 + 26244 = 1332^2 + 162^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2455 + ... + 3102.

2^1800468 is an apocalyptic number.

1800468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1800468 is an abundant number, since it is smaller than the sum of its proper divisors (2907158).

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

1800468 is a wasteful number, since it uses less digits than its factorization.

1800468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5573 (or 5562 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1800468 is about 1341.8151884667. The cubic root of 1800468 is about 121.6545814814.

The spelling of 1800468 in words is "one million, eight hundred thousand, four hundred sixty-eight".