27424012 has 48 divisors (see below), whose sum is σ = 60238080. Its totient is φ = 10612800.

The previous prime is 27423997. The next prime is 27424013. The reversal of 27424012 is 21042472.

It is a happy number.

It is a super-2 number, since 2×27424012² = 1504152868352288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (27424013) 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 15 ways as a sum of consecutive naturals, for example, 82687 + ... + 83017.

It is an arithmetic number, because the mean of its divisors is an integer number (1254960).

Almost surely, 2^27424012 is an apocalyptic number.

27424012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27424012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30119040).

27424012 is an abundant number, since it is smaller than the sum of its proper divisors (32814068).

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

27424012 is a wasteful number, since it uses less digits than its factorization.

27424012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 27424012 is about 5236.7940574363. The cubic root of 27424012 is about 301.5622651183.

Adding to 27424012 its reverse (21042472), we get a palindrome (48466484).

The spelling of 27424012 in words is "twenty-seven million, four hundred twenty-four thousand, twelve".