20246424 has 64 divisors (see below), whose sum is σ = 56298240. Its totient is φ = 6015360.

The previous prime is 20246399. The next prime is 20246453. The reversal of 20246424 is 42464202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20246394 and 20246403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13269 + ... + 14715.

It is an arithmetic number, because the mean of its divisors is an integer number (879660).

Almost surely, 2^20246424 is an apocalyptic number.

20246424 is a gapful number since it is divisible by the number (24) 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 20246424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28149120).

20246424 is an abundant number, since it is smaller than the sum of its proper divisors (36051816).

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

20246424 is a wasteful number, since it uses less digits than its factorization.

20246424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 20246424 is about 4499.6026491236. The cubic root of 20246424 is about 272.5520434785.

It can be divided in two parts, 2024 and 6424, that added together give a palindrome (8448).

The spelling of 20246424 in words is "twenty million, two hundred forty-six thousand, four hundred twenty-four".