1669860244 has 48 divisors (see below), whose sum is σ = 3209068800. Its totient is φ = 755588736.

The previous prime is 1669860233. The next prime is 1669860253. The reversal of 1669860244 is 4420689661.

It is a junction number, because it is equal to n+sod(n) for n = 1669860194 and 1669860203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2205514 + ... + 2206270.

It is an arithmetic number, because the mean of its divisors is an integer number (66855600).

Almost surely, 2^1669860244 is an apocalyptic number.

It is an amenable number.

1669860244 is a deficient number, since it is larger than the sum of its proper divisors (1539208556).

1669860244 is a wasteful number, since it uses less digits than its factorization.

1669860244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 1669860244 is about 40863.9235022777. The cubic root of 1669860244 is about 1186.3878992462.

The spelling of 1669860244 in words is "one billion, six hundred sixty-nine million, eight hundred sixty thousand, two hundred forty-four".