1490449775 has 48 divisors (see below), whose sum is σ = 2026536960. Its totient is φ = 1083196800.

The previous prime is 1490449771. The next prime is 1490449777. The reversal of 1490449775 is 5779440941.

It is not a de Polignac number, because 1490449775 - 2² = 1490449771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490449771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1869677 + ... + 1870473.

It is an arithmetic number, because the mean of its divisors is an integer number (42219520).

Almost surely, 2^1490449775 is an apocalyptic number.

1490449775 is a deficient number, since it is larger than the sum of its proper divisors (536087185).

1490449775 is a wasteful number, since it uses less digits than its factorization.

1490449775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 979 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 1490449775 is about 38606.3437144726. The cubic root of 1490449775 is about 1142.2796731614.

The spelling of 1490449775 in words is "one billion, four hundred ninety million, four hundred forty-nine thousand, seven hundred seventy-five".