20201424 has 40 divisors (see below), whose sum is σ = 52413312. Its totient is φ = 6704640.

The previous prime is 20201407. The next prime is 20201437. The reversal of 20201424 is 42410202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12232 + ... + 13784.

Almost surely, 2^20201424 is an apocalyptic number.

20201424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20201424 is an abundant number, since it is smaller than the sum of its proper divisors (32211888).

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

20201424 is a wasteful number, since it uses less digits than its factorization.

20201424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 20201424 is about 4494.5994259778. The cubic root of 20201424 is about 272.3499676310.

Adding to 20201424 its reverse (42410202), we get a palindrome (62611626).

The spelling of 20201424 in words is "twenty million, two hundred one thousand, four hundred twenty-four".