27803040 has 48 divisors (see below), whose sum is σ = 87581088. Its totient is φ = 7414016.

The previous prime is 27803029. The next prime is 27803071. The reversal of 27803040 is 4030872.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 27803040.

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 7 ways as a sum of consecutive naturals, for example, 28482 + ... + 29441.

It is an arithmetic number, because the mean of its divisors is an integer number (1824606).

Almost surely, 2^27803040 is an apocalyptic number.

27803040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27803040 is an abundant number, since it is smaller than the sum of its proper divisors (59778048).

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

27803040 is a wasteful number, since it uses less digits than its factorization.

27803040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57941 (or 57933 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 27803040 is about 5272.8588071368. The cubic root of 27803040 is about 302.9452133296.

The spelling of 27803040 in words is "twenty-seven million, eight hundred three thousand, forty".