190493808 has 40 divisors (see below), whose sum is σ = 509082000. Its totient is φ = 61307904.

The previous prime is 190493783. The next prime is 190493833. The reversal of 190493808 is 808394091.

190493808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (190493783) and next prime (190493833).

It is a self number, because there is not a number n which added to its sum of digits gives 190493808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67033 + ... + 69816.

It is an arithmetic number, because the mean of its divisors is an integer number (12727050).

Almost surely, 2^190493808 is an apocalyptic number.

It is an amenable number.

190493808 is an abundant number, since it is smaller than the sum of its proper divisors (318588192).

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

190493808 is a wasteful number, since it uses less digits than its factorization.

190493808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136889 (or 136883 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 190493808 is about 13801.9494275265. The cubic root of 190493808 is about 575.3873211457.

The spelling of 190493808 in words is "one hundred ninety million, four hundred ninety-three thousand, eight hundred eight".