27421424 has 20 divisors (see below), whose sum is σ = 53210880. Its totient is φ = 13689600.

The previous prime is 27421423. The next prime is 27421439. The reversal of 27421424 is 42412472.

It is a junction number, because it is equal to n+sod(n) for n = 27421393 and 27421402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27421421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17672 + ... + 19160.

It is an arithmetic number, because the mean of its divisors is an integer number (2660544).

Almost surely, 2^27421424 is an apocalyptic number.

It is an amenable number.

27421424 is a deficient number, since it is larger than the sum of its proper divisors (25789456).

27421424 is a wasteful number, since it uses less digits than its factorization.

27421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648 (or 2642 counting only the distinct ones).

The product of its digits is 3584, while the sum is 26.

The square root of 27421424 is about 5236.5469538619. The cubic root of 27421424 is about 301.5527786910.

Adding to 27421424 its reverse (42412472), we get a palindrome (69833896).

The spelling of 27421424 in words is "twenty-seven million, four hundred twenty-one thousand, four hundred twenty-four".