1489497650 has 12 divisors (see below), whose sum is σ = 2770465722. Its totient is φ = 595799040.

The previous prime is 1489497643. The next prime is 1489497671. The reversal of 1489497650 is 567949841.

It can be written as a sum of positive squares in 3 ways, for example, as 1212641329 + 276856321 = 34823^2 + 16639^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1489497592 and 1489497601.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 14894927 + ... + 14895026.

Almost surely, 2^1489497650 is an apocalyptic number.

1489497650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1489497650 is a deficient number, since it is larger than the sum of its proper divisors (1280968072).

1489497650 is a wasteful number, since it uses less digits than its factorization.

1489497650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29789965 (or 29789960 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 1489497650 is about 38594.0105456792. The cubic root of 1489497650 is about 1142.0363853688.

The spelling of 1489497650 in words is "one billion, four hundred eighty-nine million, four hundred ninety-seven thousand, six hundred fifty".