1085628890 has 8 divisors (see below), whose sum is σ = 1954132020. Its totient is φ = 434251552.

The previous prime is 1085628883. The next prime is 1085628913. The reversal of 1085628890 is 988265801.

It can be written as a sum of positive squares in 2 ways, for example, as 1028035969 + 57592921 = 32063^2 + 7589^2 .

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

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, 54281435 + ... + 54281454.

Almost surely, 2^1085628890 is an apocalyptic number.

1085628890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1085628890 is a deficient number, since it is larger than the sum of its proper divisors (868503130).

1085628890 is a wasteful number, since it uses less digits than its factorization.

1085628890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108562896.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 1085628890 is about 32948.8829856188. The cubic root of 1085628890 is about 1027.7649370189.

The spelling of 1085628890 in words is "one billion, eighty-five million, six hundred twenty-eight thousand, eight hundred ninety".