1028767494 has 8 divisors (see below), whose sum is σ = 2057535000. Its totient is φ = 342922496.

The previous prime is 1028767469. The next prime is 1028767507. The reversal of 1028767494 is 4947678201.

It is a sphenic number, since it is the product of 3 distinct primes.

1028767494 is an admirable number.

It is a super-2 number, since 2×1028767494² = 2116725113422080072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85730619 + ... + 85730630.

It is an arithmetic number, because the mean of its divisors is an integer number (257191875).

Almost surely, 2^1028767494 is an apocalyptic number.

1028767494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1028767494 is a wasteful number, since it uses less digits than its factorization.

1028767494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171461254.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 1028767494 is about 32074.4055907510. The cubic root of 1028767494 is about 1009.4986545580.

The spelling of 1028767494 in words is "one billion, twenty-eight million, seven hundred sixty-seven thousand, four hundred ninety-four".