1490489171 has 8 divisors (see below), whose sum is σ = 1566648864. Its totient is φ = 1415275840.

The previous prime is 1490489159. The next prime is 1490489237. The reversal of 1490489171 is 1719840941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1490489171 - 2¹⁸ = 1490227027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1490489101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233360 + ... + 239661.

It is an arithmetic number, because the mean of its divisors is an integer number (195831108).

Almost surely, 2^1490489171 is an apocalyptic number.

1490489171 is a deficient number, since it is larger than the sum of its proper divisors (76159693).

1490489171 is a wasteful number, since it uses less digits than its factorization.

1490489171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473181.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 1490489171 is about 38606.8539381287. The cubic root of 1490489171 is about 1142.2897374284.

The spelling of 1490489171 in words is "one billion, four hundred ninety million, four hundred eighty-nine thousand, one hundred seventy-one".