1893064128 has 56 divisors (see below), whose sum is σ = 5226515328. Its totient is φ = 603584256.

The previous prime is 1893064127. The next prime is 1893064139. The reversal of 1893064128 is 8214603981.

It is a self number, because there is not a number n which added to its sum of digits gives 1893064128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1893064127) 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, 209926 + ... + 218757.

Almost surely, 2^1893064128 is an apocalyptic number.

It is an amenable number.

1893064128 is an abundant number, since it is smaller than the sum of its proper divisors (3333451200).

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

1893064128 is a wasteful number, since it uses less digits than its factorization.

1893064128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428721 (or 428711 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1893064128 is about 43509.3567867878. The cubic root of 1893064128 is about 1237.0533850452.

The spelling of 1893064128 in words is "one billion, eight hundred ninety-three million, sixty-four thousand, one hundred twenty-eight".