1996070409 has 24 divisors (see below), whose sum is σ = 2909186280. Its totient is φ = 1318760448.

The previous prime is 1996070393. The next prime is 1996070423. The reversal of 1996070409 is 9040706991.

It can be written as a sum of positive squares in 4 ways, for example, as 795240000 + 1200830409 = 28200^2 + 34653^2 .

It is not a de Polignac number, because 1996070409 - 2⁴ = 1996070393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1996070429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1055737 + ... + 1057625.

It is an arithmetic number, because the mean of its divisors is an integer number (121216095).

Almost surely, 2^1996070409 is an apocalyptic number.

It is an amenable number.

1996070409 is a deficient number, since it is larger than the sum of its proper divisors (913115871).

1996070409 is a wasteful number, since it uses less digits than its factorization.

1996070409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 1996070409 is about 44677.4037853589. The cubic root of 1996070409 is about 1259.0953464760.

The spelling of 1996070409 in words is "one billion, nine hundred ninety-six million, seventy thousand, four hundred nine".