27299420 has 12 divisors (see below), whose sum is σ = 57328824. Its totient is φ = 10919760.

The previous prime is 27299407. The next prime is 27299423. The reversal of 27299420 is 2499272.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27299423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 682466 + ... + 682505.

It is an arithmetic number, because the mean of its divisors is an integer number (4777402).

Almost surely, 2^27299420 is an apocalyptic number.

27299420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27299420 is an abundant number, since it is smaller than the sum of its proper divisors (30029404).

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

27299420 is a wasteful number, since it uses less digits than its factorization.

27299420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364980 (or 1364978 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 27299420 is about 5224.8846877228. The cubic root of 27299420 is about 301.1048887038.

The spelling of 27299420 in words is "twenty-seven million, two hundred ninety-nine thousand, four hundred twenty".