1028509042 has 16 divisors (see below), whose sum is σ = 1700368992. Its totient is φ = 462683520.

The previous prime is 1028509039. The next prime is 1028509057. The reversal of 1028509042 is 2409058201.

It is a junction number, because it is equal to n+sod(n) for n = 1028508995 and 1028509013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238848 + ... + 243115.

It is an arithmetic number, because the mean of its divisors is an integer number (106273062).

Almost surely, 2^1028509042 is an apocalyptic number.

1028509042 is a deficient number, since it is larger than the sum of its proper divisors (671859950).

1028509042 is a wasteful number, since it uses less digits than its factorization.

1028509042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482073.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1028509042 is about 32070.3763931763. The cubic root of 1028509042 is about 1009.4141104151.

The spelling of 1028509042 in words is "one billion, twenty-eight million, five hundred nine thousand, forty-two".