27203420 has 12 divisors (see below), whose sum is σ = 57127224. Its totient is φ = 10881360.

The previous prime is 27203419. The next prime is 27203431. The reversal of 27203420 is 2430272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1360171 = 27203420 / (2 + 7 + 2 + 0 + 3 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 27203392 and 27203401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680066 + ... + 680105.

It is an arithmetic number, because the mean of its divisors is an integer number (4760602).

Almost surely, 2^27203420 is an apocalyptic number.

27203420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27203420 is an abundant number, since it is smaller than the sum of its proper divisors (29923804).

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

27203420 is a wasteful number, since it uses less digits than its factorization.

27203420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360180 (or 1360178 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 27203420 is about 5215.6897913891. The cubic root of 27203420 is about 300.7515232116.

Adding to 27203420 its reverse (2430272), we get a palindrome (29633692).

The spelling of 27203420 in words is "twenty-seven million, two hundred three thousand, four hundred twenty".