20708924042 has 8 divisors (see below), whose sum is σ = 31065584832. Its totient is φ = 10353729100.

The previous prime is 20708924021. The next prime is 20708924083. The reversal of 20708924042 is 24042980702.

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

It is a junction number, because it is equal to n+sod(n) for n = 20708923987 and 20708924005.

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, 330434 + ... + 388077.

It is an arithmetic number, because the mean of its divisors is an integer number (3883198104).

Almost surely, 2^20708924042 is an apocalyptic number.

20708924042 is a deficient number, since it is larger than the sum of its proper divisors (10356660790).

20708924042 is a wasteful number, since it uses less digits than its factorization.

20708924042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732924.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 20708924042 in words is "twenty billion, seven hundred eight million, nine hundred twenty-four thousand, forty-two".