20200169420 has 36 divisors (see below), whose sum is σ = 45062466960. Its totient is φ = 7604767488.

The previous prime is 20200169387. The next prime is 20200169449. The reversal of 20200169420 is 2496100202.

It is a self number, because there is not a number n which added to its sum of digits gives 20200169420.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1741640 + ... + 1753199.

Almost surely, 2^20200169420 is an apocalyptic number.

20200169420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200169420 is an abundant number, since it is smaller than the sum of its proper divisors (24862297540).

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

20200169420 is a wasteful number, since it uses less digits than its factorization.

20200169420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494882 (or 3494863 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 20200169420 its reverse (2496100202), we get a palindrome (22696269622).

The spelling of 20200169420 in words is "twenty billion, two hundred million, one hundred sixty-nine thousand, four hundred twenty".