1994917606 has 16 divisors (see below), whose sum is σ = 3267644688. Its totient is φ = 905882400.

The previous prime is 1994917591. The next prime is 1994917609. The reversal of 1994917606 is 6067194991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994917609) 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, 21945 + ... + 66868.

It is an arithmetic number, because the mean of its divisors is an integer number (204227793).

Almost surely, 2^1994917606 is an apocalyptic number.

1994917606 is a deficient number, since it is larger than the sum of its proper divisors (1272727082).

1994917606 is a wasteful number, since it uses less digits than its factorization.

1994917606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89847.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 1994917606 is about 44664.5005121517. The cubic root of 1994917606 is about 1258.8529087335.

The spelling of 1994917606 in words is "one billion, nine hundred ninety-four million, nine hundred seventeen thousand, six hundred six".