20424486 has 8 divisors (see below), whose sum is σ = 40848984. Its totient is φ = 6808160.

The previous prime is 20424431. The next prime is 20424491. The reversal of 20424486 is 68442402.

It is a sphenic number, since it is the product of 3 distinct primes.

20424486 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702035 + ... + 1702046.

It is an arithmetic number, because the mean of its divisors is an integer number (5106123).

Almost surely, 2^20424486 is an apocalyptic number.

20424486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20424486 is a wasteful number, since it uses less digits than its factorization.

20424486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404086.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 20424486 is about 4519.3457491102. The cubic root of 20424486 is about 273.3487204637.

Adding to 20424486 its reverse (68442402), we get a palindrome (88866888).

It can be divided in two parts, 20424 and 486, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 20424486 in words is "twenty million, four hundred twenty-four thousand, four hundred eighty-six".