190368840 has 128 divisors (see below), whose sum is σ = 586051200. Its totient is φ = 49459200.

The previous prime is 190368817. The next prime is 190368853. The reversal of 190368840 is 48863091.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1369491 + ... + 1369629.

It is an arithmetic number, because the mean of its divisors is an integer number (4578525).

Almost surely, 2^190368840 is an apocalyptic number.

190368840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190368840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293025600).

190368840 is an abundant number, since it is smaller than the sum of its proper divisors (395682360).

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

190368840 is a wasteful number, since it uses less digits than its factorization.

190368840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 190368840 is about 13797.4214982365. The cubic root of 190368840 is about 575.2614715044.

The spelling of 190368840 in words is "one hundred ninety million, three hundred sixty-eight thousand, eight hundred forty".