1490089909 has 8 divisors (see below), whose sum is σ = 1857774528. Its totient is φ = 1161108960.

The previous prime is 1490089903. The next prime is 1490089949. The reversal of 1490089909 is 9099800941.

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

It is not a de Polignac number, because 1490089909 - 2²⁵ = 1456535477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490089903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9675832 + ... + 9675985.

It is an arithmetic number, because the mean of its divisors is an integer number (232221816).

Almost surely, 2^1490089909 is an apocalyptic number.

It is an amenable number.

1490089909 is a deficient number, since it is larger than the sum of its proper divisors (367684619).

1490089909 is a wasteful number, since it uses less digits than its factorization.

1490089909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351835.

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 1490089909 is about 38601.6827223892. The cubic root of 1490089909 is about 1142.1877320771.

The spelling of 1490089909 in words is "one billion, four hundred ninety million, eighty-nine thousand, nine hundred nine".