1008728428 has 12 divisors (see below), whose sum is σ = 1795195080. Its totient is φ = 495815552.

The previous prime is 1008728417. The next prime is 1008728459. The reversal of 1008728428 is 8248278001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136901 + ... + 2137372.

It is an arithmetic number, because the mean of its divisors is an integer number (149599590).

Almost surely, 2^1008728428 is an apocalyptic number.

It is an amenable number.

1008728428 is a deficient number, since it is larger than the sum of its proper divisors (786466652).

1008728428 is a wasteful number, since it uses less digits than its factorization.

1008728428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274336 (or 4274334 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 1008728428 is about 31760.4853237478. The cubic root of 1008728428 is about 1002.9010517602.

The spelling of 1008728428 in words is "one billion, eight million, seven hundred twenty-eight thousand, four hundred twenty-eight".