1994730605 has 16 divisors (see below), whose sum is σ = 2736355584. Its totient is φ = 1367452800.

The previous prime is 1994730589. The next prime is 1994730607. The reversal of 1994730605 is 5060374991.

It is not a de Polignac number, because 1994730605 - 2⁴ = 1994730589 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 (1994730607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253409 + ... + 261161.

It is an arithmetic number, because the mean of its divisors is an integer number (171022224).

Almost surely, 2^1994730605 is an apocalyptic number.

It is an amenable number.

1994730605 is a deficient number, since it is larger than the sum of its proper divisors (741624979).

1994730605 is an equidigital number, since it uses as much as digits as its factorization.

1994730605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15116.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 1994730605 is about 44662.4070667939. The cubic root of 1994730605 is about 1258.8135730891.

The spelling of 1994730605 in words is "one billion, nine hundred ninety-four million, seven hundred thirty thousand, six hundred five".