1069804021 has 16 divisors (see below), whose sum is σ = 1287494208. Its totient is φ = 875836800.

The previous prime is 1069803983. The next prime is 1069804027. The reversal of 1069804021 is 1204089601.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1069804021 - 2¹³ = 1069795829 is a prime.

It is a super-2 number, since 2×1069804021² = 2288961286695536882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1069804027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85371 + ... + 97096.

It is an arithmetic number, because the mean of its divisors is an integer number (80468388).

Almost surely, 2^1069804021 is an apocalyptic number.

1069804021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1069804021 is a deficient number, since it is larger than the sum of its proper divisors (217690187).

1069804021 is a wasteful number, since it uses less digits than its factorization.

1069804021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182532.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1069804021 is about 32707.8587039873. The cubic root of 1069804021 is about 1022.7466727516.

The spelling of 1069804021 in words is "one billion, sixty-nine million, eight hundred four thousand, twenty-one".