190281312 has 120 divisors (see below), whose sum is σ = 602765856. Its totient is φ = 58537728.

The previous prime is 190281293. The next prime is 190281341. The reversal of 190281312 is 213182091.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30873 + ... + 36519.

Almost surely, 2^190281312 is an apocalyptic number.

190281312 is a gapful number since it is divisible by the number (12) 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 190281312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301382928).

190281312 is an abundant number, since it is smaller than the sum of its proper divisors (412484544).

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

190281312 is a wasteful number, since it uses less digits than its factorization.

190281312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682 (or 5665 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 190281312 is about 13794.2492365478. The cubic root of 190281312 is about 575.1732931994.

The spelling of 190281312 in words is "one hundred ninety million, two hundred eighty-one thousand, three hundred twelve".