1074821409 has 6 divisors (see below), whose sum is σ = 1552519826. Its totient is φ = 716547600.

The previous prime is 1074821387. The next prime is 1074821417. The reversal of 1074821409 is 9041284701.

It can be written as a sum of positive squares in only one way, i.e., 745290000 + 329531409 = 27300^2 + 18153^2 .

It is not a de Polignac number, because 1074821409 - 2¹⁶ = 1074755873 is a prime.

It is a super-2 number, since 2×1074821409² = 2310482122489490562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1074821009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59712292 + ... + 59712309.

Almost surely, 2^1074821409 is an apocalyptic number.

It is an amenable number.

1074821409 is a deficient number, since it is larger than the sum of its proper divisors (477698417).

1074821409 is a wasteful number, since it uses less digits than its factorization.

1074821409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119424607 (or 119424604 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1074821409 is about 32784.4690211692. The cubic root of 1074821409 is about 1024.3430758737.

The spelling of 1074821409 in words is "one billion, seventy-four million, eight hundred twenty-one thousand, four hundred nine".