1016010409 has 4 divisors (see below), whose sum is σ = 1026070020. Its totient is φ = 1005950800.

The previous prime is 1016010403. The next prime is 1016010431. The reversal of 1016010409 is 9040106101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 998370409 + 17640000 = 31597^2 + 4200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016010409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1016010409.

It is not an unprimeable number, because it can be changed into a prime (1016010403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5029654 + ... + 5029855.

It is an arithmetic number, because the mean of its divisors is an integer number (256517505).

Almost surely, 2^1016010409 is an apocalyptic number.

It is an amenable number.

1016010409 is a deficient number, since it is larger than the sum of its proper divisors (10059611).

1016010409 is a wasteful number, since it uses less digits than its factorization.

1016010409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10059610.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1016010409 is about 31874.9181802871. The cubic root of 1016010409 is about 1005.3085721944.

The spelling of 1016010409 in words is "one billion, sixteen million, ten thousand, four hundred nine".