20037424 has 80 divisors (see below), whose sum is σ = 46309536. Its totient is φ = 8294400.

The previous prime is 20037421. The next prime is 20037443. The reversal of 20037424 is 42473002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20037395 and 20037404.

It is not an unprimeable number, because it can be changed into a prime (20037421) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 110614 + ... + 110794.

Almost surely, 2^20037424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20037424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23154768).

20037424 is an abundant number, since it is smaller than the sum of its proper divisors (26272112).

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

20037424 is a wasteful number, since it uses less digits than its factorization.

20037424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20037424 is about 4476.3181298920. The cubic root of 20037424 is about 271.6109634413.

The spelling of 20037424 in words is "twenty million, thirty-seven thousand, four hundred twenty-four".