1490468779 has 2 divisors, whose sum is σ = 1490468780. Its totient is φ = 1490468778.

The previous prime is 1490468767. The next prime is 1490468827. The reversal of 1490468779 is 9778640941.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1490468779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1490468719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745234389 + 745234390.

It is an arithmetic number, because the mean of its divisors is an integer number (745234390).

Almost surely, 2^1490468779 is an apocalyptic number.

1490468779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490468779 is an equidigital number, since it uses as much as digits as its factorization.

1490468779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 1490468779 is about 38606.5898390417. The cubic root of 1490468779 is about 1142.2845280249.

The spelling of 1490468779 in words is "one billion, four hundred ninety million, four hundred sixty-eight thousand, seven hundred seventy-nine".