1994707928 has 16 divisors (see below), whose sum is σ = 3869046000. Its totient is φ = 962962336.

The previous prime is 1994707919. The next prime is 1994707943. The reversal of 1994707928 is 8297074991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4298708 + ... + 4299171.

It is an arithmetic number, because the mean of its divisors is an integer number (241815375).

Almost surely, 2^1994707928 is an apocalyptic number.

It is an amenable number.

1994707928 is a deficient number, since it is larger than the sum of its proper divisors (1874338072).

1994707928 is a wasteful number, since it uses less digits than its factorization.

1994707928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8597914 (or 8597910 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 56.

The square root of 1994707928 is about 44662.1531948472. The cubic root of 1994707928 is about 1258.8088028169.

The spelling of 1994707928 in words is "one billion, nine hundred ninety-four million, seven hundred seven thousand, nine hundred twenty-eight".