1028057004 has 36 divisors (see below), whose sum is σ = 2798600896. Its totient is φ = 316325088.

The previous prime is 1028057003. The next prime is 1028057027. The reversal of 1028057004 is 4007508201.

1028057004 is a `hidden beast` number, since 10 + 2 + 80 + 570 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1028057003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1097884 + ... + 1098819.

Almost surely, 2^1028057004 is an apocalyptic number.

It is an amenable number.

1028057004 is an abundant number, since it is smaller than the sum of its proper divisors (1770543892).

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

1028057004 is a wasteful number, since it uses less digits than its factorization.

1028057004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196726 (or 2196721 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1028057004 is about 32063.3280243957. The cubic root of 1028057004 is about 1009.2662068701.

The spelling of 1028057004 in words is "one billion, twenty-eight million, fifty-seven thousand, four".