1669441490 has 16 divisors (see below), whose sum is σ = 3006488448. Its totient is φ = 667444656.

The previous prime is 1669441483. The next prime is 1669441507. The reversal of 1669441490 is 941449661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19832 + ... + 61091.

It is an arithmetic number, because the mean of its divisors is an integer number (187905528).

Almost surely, 2^1669441490 is an apocalyptic number.

1669441490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1669441490 is a deficient number, since it is larger than the sum of its proper divisors (1337046958).

1669441490 is a wasteful number, since it uses less digits than its factorization.

1669441490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82993.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1669441490 is about 40858.7994194641. The cubic root of 1669441490 is about 1186.2887200456.

The spelling of 1669441490 in words is "one billion, six hundred sixty-nine million, four hundred forty-one thousand, four hundred ninety".