1069849890 has 96 divisors (see below), whose sum is σ = 2922186240. Its totient is φ = 278528544.

The previous prime is 1069849889. The next prime is 1069849901. The reversal of 1069849890 is 989489601.

1069849890 is a `hidden beast` number, since 1 + 0 + 69 + 8 + 498 + 90 = 666.

It is a super-2 number, since 2×1069849890² = 2289157574266024200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 498159 + ... + 500301.

It is an arithmetic number, because the mean of its divisors is an integer number (30439440).

Almost surely, 2^1069849890 is an apocalyptic number.

1069849890 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 1069849890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1461093120).

1069849890 is an abundant number, since it is smaller than the sum of its proper divisors (1852336350).

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

1069849890 is a wasteful number, since it uses less digits than its factorization.

1069849890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2196 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 1069849890 is about 32708.5598888120. The cubic root of 1069849890 is about 1022.7612896645.

The spelling of 1069849890 in words is "one billion, sixty-nine million, eight hundred forty-nine thousand, eight hundred ninety".