20424009790 has 8 divisors (see below), whose sum is σ = 36763217640. Its totient is φ = 8169603912.

The previous prime is 20424009787. The next prime is 20424009791. The reversal of 20424009790 is 9790042402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424009791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021200480 + ... + 1021200499.

It is an arithmetic number, because the mean of its divisors is an integer number (4595402205).

Almost surely, 2^20424009790 is an apocalyptic number.

20424009790 is a deficient number, since it is larger than the sum of its proper divisors (16339207850).

20424009790 is a wasteful number, since it uses less digits than its factorization.

20424009790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042400986.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 20424009790 in words is "twenty billion, four hundred twenty-four million, nine thousand, seven hundred ninety".