1099280490 has 64 divisors (see below), whose sum is σ = 3289282560. Its totient is φ = 228421440.

The previous prime is 1099280489. The next prime is 1099280531. The reversal of 1099280490 is 940829901.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235630 + ... + 240249.

It is an arithmetic number, because the mean of its divisors is an integer number (51395040).

Almost surely, 2^1099280490 is an apocalyptic number.

1099280490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1099280490 is an abundant number, since it is smaller than the sum of its proper divisors (2190002070).

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

1099280490 is a wasteful number, since it uses less digits than its factorization.

1099280490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475907.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1099280490 is about 33155.3991078376. The cubic root of 1099280490 is about 1032.0549948909.

The spelling of 1099280490 in words is "one billion, ninety-nine million, two hundred eighty thousand, four hundred ninety".