190777482 has 72 divisors (see below), whose sum is σ = 484151616. Its totient is φ = 54132624.

The previous prime is 190777481. The next prime is 190777493. The reversal of 190777482 is 284777091.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (190777481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 143103 + ... + 144429.

It is an arithmetic number, because the mean of its divisors is an integer number (6724328).

Almost surely, 2^190777482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190777482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242075808).

190777482 is an abundant number, since it is smaller than the sum of its proper divisors (293374134).

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

190777482 is a wasteful number, since it uses less digits than its factorization.

190777482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1502 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 190777482 is about 13812.2221963014. Note that the first 3 decimals coincide. The cubic root of 190777482 is about 575.6727923126.

The spelling of 190777482 in words is "one hundred ninety million, seven hundred seventy-seven thousand, four hundred eighty-two".