1900202068 has 12 divisors (see below), whose sum is σ = 3326162112. Its totient is φ = 949870040.

The previous prime is 1900202053. The next prime is 1900202069. The reversal of 1900202068 is 8602020091.

It is a happy number.

It is a super-2 number, since 2×1900202068² = 7221535798462953248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900202069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38530 + ... + 72697.

It is an arithmetic number, because the mean of its divisors is an integer number (277180176).

Almost surely, 2^1900202068 is an apocalyptic number.

It is an amenable number.

1900202068 is a deficient number, since it is larger than the sum of its proper divisors (1425960044).

1900202068 is a wasteful number, since it uses less digits than its factorization.

1900202068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115502 (or 115500 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1900202068 is about 43591.3072527081. The cubic root of 1900202068 is about 1238.6062357602.

The spelling of 1900202068 in words is "one billion, nine hundred million, two hundred two thousand, sixty-eight".