1099679490 has 192 divisors, whose sum is σ = 3650040576. Its totient is φ = 231973632.

The previous prime is 1099679467. The next prime is 1099679521. The reversal of 1099679490 is 949769901.

1099679490 is a `hidden beast` number, since 1 + 0 + 99 + 67 + 9 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 218644 + ... + 223616.

It is an arithmetic number, because the mean of its divisors is an integer number (19010628).

Almost surely, 2^1099679490 is an apocalyptic number.

1099679490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099679490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825020288).

1099679490 is an abundant number, since it is smaller than the sum of its proper divisors (2550361086).

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

1099679490 is a wasteful number, since it uses less digits than its factorization.

1099679490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015 (or 5003 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 1099679490 is about 33161.4156814814. The cubic root of 1099679490 is about 1032.1798462930.

The spelling of 1099679490 in words is "one billion, ninety-nine million, six hundred seventy-nine thousand, four hundred ninety".