192990028 has 36 divisors (see below), whose sum is σ = 428593032. Its totient is φ = 75190080.

The previous prime is 192990019. The next prime is 192990053. The reversal of 192990028 is 820099291.

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, 42601 + ... + 46912.

It is an arithmetic number, because the mean of its divisors is an integer number (11905362).

Almost surely, 2^192990028 is an apocalyptic number.

It is an amenable number.

192990028 is an abundant number, since it is smaller than the sum of its proper divisors (235603004).

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

192990028 is a wasteful number, since it uses less digits than its factorization.

192990028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89542 (or 89533 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 192990028 is about 13892.0850846804. The cubic root of 192990028 is about 577.8897032948.

The spelling of 192990028 in words is "one hundred ninety-two million, nine hundred ninety thousand, twenty-eight".