20040206442 has 16 divisors (see below), whose sum is σ = 40081828800. Its totient is φ = 6679832832.

The previous prime is 20040206413. The next prime is 20040206497. The reversal of 20040206442 is 24460204002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 247434 + ... + 318282.

It is an arithmetic number, because the mean of its divisors is an integer number (2505114300).

Almost surely, 2^20040206442 is an apocalyptic number.

20040206442 is an abundant number, since it is smaller than the sum of its proper divisors (20041622358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20040206442 is a wasteful number, since it uses less digits than its factorization.

20040206442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117997.

The product of its (nonzero) digits is 3072, while the sum is 24.

The spelling of 20040206442 in words is "twenty billion, forty million, two hundred six thousand, four hundred forty-two".