1028262628 has 12 divisors (see below), whose sum is σ = 1861510140. Its totient is φ = 496402592.

The previous prime is 1028262611. The next prime is 1028262659. The reversal of 1028262628 is 8262628201.

It can be written as a sum of positive squares in 2 ways, for example, as 389588644 + 638673984 = 19738^2 + 25272^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4432051 + ... + 4432282.

It is an arithmetic number, because the mean of its divisors is an integer number (155125845).

Almost surely, 2^1028262628 is an apocalyptic number.

It is an amenable number.

1028262628 is a deficient number, since it is larger than the sum of its proper divisors (833247512).

1028262628 is a wasteful number, since it uses less digits than its factorization.

1028262628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864366 (or 8864364 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 1028262628 is about 32066.5343933516. The cubic root of 1028262628 is about 1009.3334909212. Note that the first 3 decimals are identical.

The spelling of 1028262628 in words is "one billion, twenty-eight million, two hundred sixty-two thousand, six hundred twenty-eight".