1490192779 has 4 divisors (see below), whose sum is σ = 1490425200. Its totient is φ = 1489960360.

The previous prime is 1490192777. The next prime is 1490192813. The reversal of 1490192779 is 9772910941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9772910941 = 29 ⋅336996929.

It is a cyclic number.

It is not a de Polignac number, because 1490192779 - 2¹ = 1490192777 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1490192777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106312 + ... + 119509.

It is an arithmetic number, because the mean of its divisors is an integer number (372606300).

Almost surely, 2^1490192779 is an apocalyptic number.

1490192779 is a deficient number, since it is larger than the sum of its proper divisors (232421).

1490192779 is an equidigital number, since it uses as much as digits as its factorization.

1490192779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232420.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 1490192779 is about 38603.0151542596. The cubic root of 1490192779 is about 1142.2140155354.

The spelling of 1490192779 in words is "one billion, four hundred ninety million, one hundred ninety-two thousand, seven hundred seventy-nine".