201920030 has 32 divisors (see below), whose sum is σ = 412020000. Its totient is φ = 70630272.

The previous prime is 201920029. The next prime is 201920041. The reversal of 201920030 is 30029102.

It is a junction number, because it is equal to n+sod(n) for n = 201919990 and 201920008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38405 + ... + 43344.

It is an arithmetic number, because the mean of its divisors is an integer number (12875625).

Almost surely, 2^201920030 is an apocalyptic number.

201920030 is an abundant number, since it is smaller than the sum of its proper divisors (210099970).

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

201920030 is a wasteful number, since it uses less digits than its factorization.

201920030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81788.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 201920030 is about 14209.8567902706. The cubic root of 201920030 is about 586.6689913963.

Adding to 201920030 its reverse (30029102), we get a palindrome (231949132).

The spelling of 201920030 in words is "two hundred one million, nine hundred twenty thousand, thirty".