190986441 has 4 divisors (see below), whose sum is σ = 254648592. Its totient is φ = 127324292.

The previous prime is 190986413. The next prime is 190986451. The reversal of 190986441 is 144689091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190986441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190986393 and 190986402.

It is not an unprimeable number, because it can be changed into a prime (190986451) 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 3 ways as a sum of consecutive naturals, for example, 31831071 + ... + 31831076.

It is an arithmetic number, because the mean of its divisors is an integer number (63662148).

Almost surely, 2^190986441 is an apocalyptic number.

It is an amenable number.

190986441 is a deficient number, since it is larger than the sum of its proper divisors (63662151).

190986441 is an equidigital number, since it uses as much as digits as its factorization.

190986441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63662150.

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

The square root of 190986441 is about 13819.7844049754. The cubic root of 190986441 is about 575.8828941858.

The spelling of 190986441 in words is "one hundred ninety million, nine hundred eighty-six thousand, four hundred forty-one".