20200200042 has 48 divisors (see below), whose sum is σ = 45439843680. Its totient is φ = 5978908320.

The previous prime is 20200200023. The next prime is 20200200049. The reversal of 20200200042 is 24000200202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20200200049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292317 + ... + 354752.

It is an arithmetic number, because the mean of its divisors is an integer number (946663410).

Almost surely, 2^20200200042 is an apocalyptic number.

20200200042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20200200042 is an abundant number, since it is smaller than the sum of its proper divisors (25239643638).

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

20200200042 is a wasteful number, since it uses less digits than its factorization.

20200200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647139 (or 647128 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20200200042 its reverse (24000200202), we get a palindrome (44200400244).

The spelling of 20200200042 in words is "twenty billion, two hundred million, two hundred thousand, forty-two".