1028767492 has 6 divisors (see below), whose sum is σ = 1800343118. Its totient is φ = 514383744.

The previous prime is 1028767469. The next prime is 1028767507. The reversal of 1028767492 is 2947678201.

It can be written as a sum of positive squares in only one way, i.e., 776402496 + 252364996 = 27864^2 + 15886^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128595933 + ... + 128595940.

Almost surely, 2^1028767492 is an apocalyptic number.

It is an amenable number.

1028767492 is a deficient number, since it is larger than the sum of its proper divisors (771575626).

1028767492 is a wasteful number, since it uses less digits than its factorization.

1028767492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257191877 (or 257191875 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 1028767492 is about 32074.4055595735. The cubic root of 1028767492 is about 1009.4986539038.

The spelling of 1028767492 in words is "one billion, twenty-eight million, seven hundred sixty-seven thousand, four hundred ninety-two".