20424766 has 8 divisors (see below), whose sum is σ = 30747024. Its totient is φ = 10175760.

The previous prime is 20424731. The next prime is 20424773. The reversal of 20424766 is 66742402.

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

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, 17610 + ... + 18733.

It is an arithmetic number, because the mean of its divisors is an integer number (3843378).

Almost surely, 2^20424766 is an apocalyptic number.

20424766 is a deficient number, since it is larger than the sum of its proper divisors (10322258).

20424766 is a wasteful number, since it uses less digits than its factorization.

20424766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36626.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 20424766 is about 4519.3767269392. The cubic root of 20424766 is about 273.3499695737.

The spelling of 20424766 in words is "twenty million, four hundred twenty-four thousand, seven hundred sixty-six".