1490226489 has 12 divisors (see below), whose sum is σ = 2154591972. Its totient is φ = 992541600.

The previous prime is 1490226473. The next prime is 1490226497. The reversal of 1490226489 is 9846220941.

1490226489 is a `hidden beast` number, since 1 + 490 + 22 + 64 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1336268025 + 153958464 = 36555^2 + 12408^2 .

It is not a de Polignac number, because 1490226489 - 2⁴ = 1490226473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1490226499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68482 + ... + 87579.

It is an arithmetic number, because the mean of its divisors is an integer number (179549331).

Almost surely, 2^1490226489 is an apocalyptic number.

It is an amenable number.

1490226489 is a deficient number, since it is larger than the sum of its proper divisors (664365483).

1490226489 is a wasteful number, since it uses less digits than its factorization.

1490226489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157128 (or 157125 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1490226489 is about 38603.4517757156. The cubic root of 1490226489 is about 1142.2226282341. Note that the first 3 decimals are identical.

The spelling of 1490226489 in words is "one billion, four hundred ninety million, two hundred twenty-six thousand, four hundred eighty-nine".