20140424 has 16 divisors (see below), whose sum is σ = 38476620. Its totient is φ = 9880000.

The previous prime is 20140423. The next prime is 20140429. The reversal of 20140424 is 42404102.

It can be written as a sum of positive squares in 2 ways, for example, as 19624900 + 515524 = 4430^2 + 718^2 .

It is not an unprimeable number, because it can be changed into a prime (20140423) 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, 23327 + ... + 24174.

Almost surely, 2^20140424 is an apocalyptic number.

It is an amenable number.

20140424 is a deficient number, since it is larger than the sum of its proper divisors (18336196).

20140424 is a wasteful number, since it uses less digits than its factorization.

20140424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47560 (or 47556 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 20140424 is about 4487.8083738056. The cubic root of 20140424 is about 272.0755629163.

Adding to 20140424 its reverse (42404102), we get a palindrome (62544526).

The spelling of 20140424 in words is "twenty million, one hundred forty thousand, four hundred twenty-four".