1996364409 has 32 divisors (see below), whose sum is σ = 3074440320. Its totient is φ = 1141890048.

The previous prime is 1996364407. The next prime is 1996364477. The reversal of 1996364409 is 9044636991.

It is not a de Polignac number, because 1996364409 - 2¹ = 1996364407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1996364407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13857 + ... + 64689.

It is an arithmetic number, because the mean of its divisors is an integer number (96076260).

Almost surely, 2^1996364409 is an apocalyptic number.

1996364409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1996364409 is a deficient number, since it is larger than the sum of its proper divisors (1078075911).

1996364409 is a wasteful number, since it uses less digits than its factorization.

1996364409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50921.

The product of its (nonzero) digits is 1259712, while the sum is 51.

The square root of 1996364409 is about 44680.6939180671. The cubic root of 1996364409 is about 1259.1571605713.

The spelling of 1996364409 in words is "one billion, nine hundred ninety-six million, three hundred sixty-four thousand, four hundred nine".