1606981244 has 12 divisors (see below), whose sum is σ = 3067873368. Its totient is φ = 730446000.

The previous prime is 1606981237. The next prime is 1606981247. The reversal of 1606981244 is 4421896061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606981247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18261107 + ... + 18261194.

It is an arithmetic number, because the mean of its divisors is an integer number (255656114).

Almost surely, 2^1606981244 is an apocalyptic number.

It is an amenable number.

1606981244 is a deficient number, since it is larger than the sum of its proper divisors (1460892124).

1606981244 is a wasteful number, since it uses less digits than its factorization.

1606981244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36522316 (or 36522314 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1606981244 is about 40087.1705661550. The cubic root of 1606981244 is about 1171.3057339058.

The spelling of 1606981244 in words is "one billion, six hundred six million, nine hundred eighty-one thousand, two hundred forty-four".