1894645928 has 16 divisors (see below), whose sum is σ = 4059955680. Its totient is φ = 811991088.

The previous prime is 1894645913. The next prime is 1894645931. The reversal of 1894645928 is 8295464981.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 33832963 = 1894645928 / (1 + 8 + 9 + 4 + 6 + 4 + 5 + 9 + 2 + 8).

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, 16916426 + ... + 16916537.

It is an arithmetic number, because the mean of its divisors is an integer number (253747230).

Almost surely, 2^1894645928 is an apocalyptic number.

It is an amenable number.

1894645928 is an abundant number, since it is smaller than the sum of its proper divisors (2165309752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1894645928 is a wasteful number, since it uses less digits than its factorization.

1894645928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33832976 (or 33832972 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 56.

The square root of 1894645928 is about 43527.5306903573. The cubic root of 1894645928 is about 1237.3978400582.

The spelling of 1894645928 in words is "one billion, eight hundred ninety-four million, six hundred forty-five thousand, nine hundred twenty-eight".