1994541628 has 12 divisors (see below), whose sum is σ = 3490839352. Its totient is φ = 997158960.

The previous prime is 1994541611. The next prime is 1994541667. The reversal of 1994541628 is 8261454991.

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, 22126 + ... + 66922.

Almost surely, 2^1994541628 is an apocalyptic number.

It is an amenable number.

1994541628 is a deficient number, since it is larger than the sum of its proper divisors (1496297724).

1994541628 is a wasteful number, since it uses less digits than its factorization.

1994541628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55932 (or 55930 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The square root of 1994541628 is about 44660.2914007511. The cubic root of 1994541628 is about 1258.7738192956.

The spelling of 1994541628 in words is "one billion, nine hundred ninety-four million, five hundred forty-one thousand, six hundred twenty-eight".