1099491828 has 24 divisors (see below), whose sum is σ = 2567019840. Its totient is φ = 366277440.

The previous prime is 1099491803. The next prime is 1099491851. The reversal of 1099491828 is 8281949901.

It is a congruent number.

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, 5968 + ... + 47271.

It is an arithmetic number, because the mean of its divisors is an integer number (106959160).

Almost surely, 2^1099491828 is an apocalyptic number.

It is an amenable number.

1099491828 is an abundant number, since it is smaller than the sum of its proper divisors (1467528012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1099491828 is a wasteful number, since it uses less digits than its factorization.

1099491828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54967 (or 54965 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 51.

The square root of 1099491828 is about 33158.5860374052. The cubic root of 1099491828 is about 1032.1211285922.

The spelling of 1099491828 in words is "one billion, ninety-nine million, four hundred ninety-one thousand, eight hundred twenty-eight".