190399752 has 48 divisors (see below), whose sum is σ = 516454380. Its totient is φ = 63369600.

The previous prime is 190399751. The next prime is 190399757. The reversal of 190399752 is 257993091.

It is a happy number.

190399752 is a `hidden beast` number, since 190 + 399 + 75 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 190274436 + 125316 = 13794^2 + 354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 190399698 and 190399707.

It is not an unprimeable number, because it can be changed into a prime (190399751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57502 + ... + 60722.

Almost surely, 2^190399752 is an apocalyptic number.

190399752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190399752 is an abundant number, since it is smaller than the sum of its proper divisors (326054628).

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

190399752 is a wasteful number, since it uses less digits than its factorization.

190399752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054 (or 4047 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 190399752 is about 13798.5416620743. The cubic root of 190399752 is about 575.2926067122.

The spelling of 190399752 in words is "one hundred ninety million, three hundred ninety-nine thousand, seven hundred fifty-two".