20433290386 has 8 divisors (see below), whose sum is σ = 32452873020. Its totient is φ = 9615666048.

The previous prime is 20433290359. The next prime is 20433290407. The reversal of 20433290386 is 68309233402.

It can be written as a sum of positive squares in 2 ways, for example, as 18668030161 + 1765260225 = 136631^2 + 42015^2 .

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

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, 300489531 + ... + 300489598.

Almost surely, 2^20433290386 is an apocalyptic number.

20433290386 is a deficient number, since it is larger than the sum of its proper divisors (12019582634).

20433290386 is a wasteful number, since it uses less digits than its factorization.

20433290386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600979148.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 20433290386 in words is "twenty billion, four hundred thirty-three million, two hundred ninety thousand, three hundred eighty-six".