1028914456 has 8 divisors (see below), whose sum is σ = 1929214620. Its totient is φ = 514457224.

The previous prime is 1028914451. The next prime is 1028914489. The reversal of 1028914456 is 6544198201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028914451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64307146 + ... + 64307161.

Almost surely, 2^1028914456 is an apocalyptic number.

It is an amenable number.

1028914456 is a deficient number, since it is larger than the sum of its proper divisors (900300164).

1028914456 is a wasteful number, since it uses less digits than its factorization.

1028914456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128614313 (or 128614309 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1028914456 is about 32076.6964633205. The cubic root of 1028914456 is about 1009.5467220686.

The spelling of 1028914456 in words is "one billion, twenty-eight million, nine hundred fourteen thousand, four hundred fifty-six".