20424501406 has 4 divisors (see below), whose sum is σ = 30636752112. Its totient is φ = 10212250702.

The previous prime is 20424501371. The next prime is 20424501413. The reversal of 20424501406 is 60410542402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106125350 + ... + 5106125353.

It is an arithmetic number, because the mean of its divisors is an integer number (7659188028).

Almost surely, 2^20424501406 is an apocalyptic number.

20424501406 is a deficient number, since it is larger than the sum of its proper divisors (10212250706).

20424501406 is a wasteful number, since it uses less digits than its factorization.

20424501406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212250705.

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 20424501406 in words is "twenty billion, four hundred twenty-four million, five hundred one thousand, four hundred six".